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11855870924374 = 21719371992492563
BaseRepresentation
bin1010110010000110100011…
…1110011001011001010110
31112222102002000210110010101
42230201220332121121112
53023221310424034444
641114302323444314
72332362351045601
oct254415076313126
945872060713111
1011855870924374
113861057067074
1213b58b722669a
13680008555399
142cdb81c3b338
151585e997e3d4
hexac868f99656

11855870924374 has 64 divisors (see below), whose sum is σ = 20458965312000. Its totient is φ = 5116890797568.

The previous prime is 11855870924257. The next prime is 11855870924377. The reversal of 11855870924374 is 47342907855811.

It is a happy number.

11855870924374 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11855870924377) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3510217 + ... + 6002779.

It is an arithmetic number, because the mean of its divisors is an integer number (319671333000).

Almost surely, 211855870924374 is an apocalyptic number.

11855870924374 is a deficient number, since it is larger than the sum of its proper divisors (8603094387626).

11855870924374 is a wasteful number, since it uses less digits than its factorization.

11855870924374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2492837.

The product of its (nonzero) digits is 67737600, while the sum is 64.

The spelling of 11855870924374 in words is "eleven trillion, eight hundred fifty-five billion, eight hundred seventy million, nine hundred twenty-four thousand, three hundred seventy-four".

Divisors: 1 2 17 19 34 37 38 74 199 323 398 629 646 703 1258 1406 3383 3781 6766 7363 7562 11951 14726 23902 64277 125171 128554 139897 250342 279794 2378249 2492563 4756498 4985126 42373571 47358697 84747142 92224831 94717394 184449662 496020037 805097849 992040074 1567822127 1610195698 1752271789 3135644254 3504543578 8432340629 9424380703 16864681258 18352741369 18848761406 29788620413 36705482738 59577240826 160214471951 311996603273 320428943902 348702086011 623993206546 697404172022 5927935462187 11855870924374