79832957618 has 4 divisors (see below), whose sum is σ = 119749436430. Its totient is φ = 39916478808.

The previous prime is 79832957579. The next prime is 79832957639. The reversal of 79832957618 is 81675923897.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 68359762849 + 11473194769 = 261457^2 + 107113^2 .

It is a super-2 number, since 2×79832957618² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19958239403 + ... + 19958239406.

Almost surely, 2^79832957618 is an apocalyptic number.

79832957618 is a deficient number, since it is larger than the sum of its proper divisors (39916478812).

79832957618 is a wasteful number, since it uses less digits than its factorization.

79832957618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39916478811.

The product of its digits is 45722880, while the sum is 65.

The spelling of 79832957618 in words is "seventy-nine billion, eight hundred thirty-two million, nine hundred fifty-seven thousand, six hundred eighteen".