77692317923 has 16 divisors (see below), whose sum is σ = 86690588256. Its totient is φ = 69026979840.

The previous prime is 77692317917. The next prime is 77692318009. The reversal of 77692317923 is 32971329677.

It is a cyclic number.

It is not a de Polignac number, because 77692317923 - 2⁸ = 77692317667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77692317323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109436 + ... + 409097.

It is an arithmetic number, because the mean of its divisors is an integer number (5418161766).

Almost surely, 2^77692317923 is an apocalyptic number.

77692317923 is a deficient number, since it is larger than the sum of its proper divisors (8998270333).

77692317923 is a wasteful number, since it uses less digits than its factorization.

77692317923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518854.

The product of its digits is 6001128, while the sum is 56.

The spelling of 77692317923 in words is "seventy-seven billion, six hundred ninety-two million, three hundred seventeen thousand, nine hundred twenty-three".