79992476520 has 128 divisors (see below), whose sum is σ = 265701219840. Its totient is φ = 19102659840.

The previous prime is 79992476507. The next prime is 79992476527. The reversal of 79992476520 is 2567429997.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is not an unprimeable number, because it can be changed into a prime (79992476527) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 363802 + ... + 540681.

It is an arithmetic number, because the mean of its divisors is an integer number (2075790780).

Almost surely, 2^79992476520 is an apocalyptic number.

It is an amenable number.

79992476520 is an abundant number, since it is smaller than the sum of its proper divisors (185708743320).

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

79992476520 is a wasteful number, since it uses less digits than its factorization.

79992476520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904575 (or 904571 counting only the distinct ones).

The product of its (nonzero) digits is 17146080, while the sum is 60.

The spelling of 79992476520 in words is "seventy-nine billion, nine hundred ninety-two million, four hundred seventy-six thousand, five hundred twenty".