76940929681 has 16 divisors (see below), whose sum is σ = 98266025088. Its totient is φ = 58491676800.

The previous prime is 76940929669. The next prime is 76940929693. The reversal of 76940929681 is 18692904967.

It is an interprime number because it is at equal distance from previous prime (76940929669) and next prime (76940929693).

It is a cyclic number.

It is not a de Polignac number, because 76940929681 - 2⁵ = 76940929649 is a prime.

It is a super-2 number, since 2×76940929681² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (76940929631) 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, 12182610 + ... + 12188923.

It is an arithmetic number, because the mean of its divisors is an integer number (6141626568).

Almost surely, 2^76940929681 is an apocalyptic number.

It is an amenable number.

76940929681 is a deficient number, since it is larger than the sum of its proper divisors (21325095407).

76940929681 is a wasteful number, since it uses less digits than its factorization.

76940929681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24371592.

The product of its (nonzero) digits is 11757312, while the sum is 61.

The spelling of 76940929681 in words is "seventy-six billion, nine hundred forty million, nine hundred twenty-nine thousand, six hundred eighty-one".