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11878875164631 = 340972227134039
BaseRepresentation
bin1010110011011100010000…
…1000100110111111010111
31120001121110020022221020210
42230313010020212333113
53024110414020232011
641133025132300503
72334135412625466
oct254670410467727
946047406287223
1011878875164631
11386a891392282
1213ba257311733
1368223346a577
142d0d251109dd
15158ee432a6a6
hexacdc4226fd7

11878875164631 has 16 divisors (see below), whose sum is σ = 15877563436800. Its totient is φ = 7899719327808.

The previous prime is 11878875164617. The next prime is 11878875164647. The reversal of 11878875164631 is 13646157887811.

It is not a de Polignac number, because 11878875164631 - 26 = 11878875164567 is a prime.

It is a super-2 number, since 2×118788751646312 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11878875164231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88555510 + ... + 88689548.

It is an arithmetic number, because the mean of its divisors is an integer number (992347714800).

Almost surely, 211878875164631 is an apocalyptic number.

11878875164631 is a deficient number, since it is larger than the sum of its proper divisors (3998688272169).

11878875164631 is a wasteful number, since it uses less digits than its factorization.

11878875164631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206678.

The product of its digits is 54190080, while the sum is 66.

The spelling of 11878875164631 in words is "eleven trillion, eight hundred seventy-eight billion, eight hundred seventy-five million, one hundred sixty-four thousand, six hundred thirty-one".

Divisors: 1 3 409 1227 72227 134039 216681 402117 29540843 54821951 88622529 164465853 9681234853 29043704559 3959625054877 11878875164631