79643290120 has 16 divisors (see below), whose sum is σ = 179197402860. Its totient is φ = 31857316032.

The previous prime is 79643290117. The next prime is 79643290163. The reversal of 79643290120 is 2109234697.

It can be written as a sum of positive squares in 2 ways, for example, as 69602047684 + 10041242436 = 263822^2 + 100206^2 .

It is a super-2 number, since 2×79643290120² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 995541087 + ... + 995541166.

Almost surely, 2^79643290120 is an apocalyptic number.

It is an amenable number.

79643290120 is an abundant number, since it is smaller than the sum of its proper divisors (99554112740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79643290120 is a wasteful number, since it uses less digits than its factorization.

79643290120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1991082264 (or 1991082260 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 43.

The spelling of 79643290120 in words is "seventy-nine billion, six hundred forty-three million, two hundred ninety thousand, one hundred twenty".