479157900020 has 24 divisors (see below), whose sum is σ = 1006256475168. Its totient is φ = 191658420000.

The previous prime is 479157899999. The next prime is 479157900029. The reversal of 479157900020 is 20009751974.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (479157900029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 598595 + ... + 1147445.

It is an arithmetic number, because the mean of its divisors is an integer number (41927353132).

Almost surely, 2^479157900020 is an apocalyptic number.

It is an amenable number.

479157900020 is an abundant number, since it is smaller than the sum of its proper divisors (527098575148).

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

479157900020 is a wasteful number, since it uses less digits than its factorization.

479157900020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592511 (or 592509 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 44.

The spelling of 479157900020 in words is "four hundred seventy-nine billion, one hundred fifty-seven million, nine hundred thousand, twenty".