76959813697 has 10 divisors (see below), whose sum is σ = 83372937898. Its totient is φ = 71039801664.

The previous prime is 76959813673. The next prime is 76959813701. The reversal of 76959813697 is 79631895967.

It can be written as a sum of positive squares in 5 ways, for example, as 76483221136 + 476592561 = 276556^2 + 21831^2 .

It is a de Polignac number, because none of the positive numbers 2^k-76959813697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76959813617) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1318728 + ... + 1375849.

Almost surely, 2^76959813697 is an apocalyptic number.

It is an amenable number.

76959813697 is a deficient number, since it is larger than the sum of its proper divisors (6413124201).

76959813697 is an frugal number, since it uses more digits than its factorization.

76959813697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2694629 (or 2694590 counting only the distinct ones).

The product of its digits is 154314720, while the sum is 70.

The spelling of 76959813697 in words is "seventy-six billion, nine hundred fifty-nine million, eight hundred thirteen thousand, six hundred ninety-seven".