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7681367113407 = 3213193455405809
BaseRepresentation
bin110111111000111010100…
…1010000111111010111111
31000012022221200101122220100
41233301311022013322333
52001322414440112112
624200434335252143
71421650303112211
oct157616512077277
930168850348810
107681367113407
1124a1716534509
12a4084a37a053
134394716c3590
141c7acca465b1
15d4c23a862dc
hex6fc75287ebf

7681367113407 has 24 divisors (see below), whose sum is σ = 12577677148400. Its totient is φ = 4478205927168.

The previous prime is 7681367113391. The next prime is 7681367113411. The reversal of 7681367113407 is 7043117631867.

It is a happy number.

7681367113407 is a `hidden beast` number, since 7 + 68 + 1 + 3 + 67 + 113 + 407 = 666.

It is not a de Polignac number, because 7681367113407 - 24 = 7681367113391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7681367113487) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1727700682 + ... + 1727705127.

Almost surely, 27681367113407 is an apocalyptic number.

7681367113407 is a deficient number, since it is larger than the sum of its proper divisors (4896310034993).

7681367113407 is a wasteful number, since it uses less digits than its factorization.

7681367113407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3455405847 (or 3455405844 counting only the distinct ones).

The product of its (nonzero) digits is 3556224, while the sum is 54.

The spelling of 7681367113407 in words is "seven trillion, six hundred eighty-one billion, three hundred sixty-seven million, one hundred thirteen thousand, four hundred seven".

Divisors: 1 3 9 13 19 39 57 117 171 247 741 2223 3455405809 10366217427 31098652281 44920275517 65652710371 134760826551 196958131113 404282479653 590874393339 853485234823 2560455704469 7681367113407