79817535964 has 6 divisors (see below), whose sum is σ = 139680687944. Its totient is φ = 39908767980.

The previous prime is 79817535961. The next prime is 79817535991. The reversal of 79817535964 is 46953571897.

It is a junction number, because it is equal to n+sod(n) for n = 79817535896 and 79817535905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79817535961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9977191992 + ... + 9977191999.

Almost surely, 2^79817535964 is an apocalyptic number.

It is an amenable number.

79817535964 is a deficient number, since it is larger than the sum of its proper divisors (59863151980).

79817535964 is a wasteful number, since it uses less digits than its factorization.

79817535964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19954383995 (or 19954383993 counting only the distinct ones).

The product of its digits is 57153600, while the sum is 64.

The spelling of 79817535964 in words is "seventy-nine billion, eight hundred seventeen million, five hundred thirty-five thousand, nine hundred sixty-four".