479493637992 has 48 divisors (see below), whose sum is σ = 1298892818340. Its totient is φ = 159798693888.

The previous prime is 479493637951. The next prime is 479493637999. The reversal of 479493637992 is 299736394974.

479493637992 is a `hidden beast` number, since 4 + 7 + 9 + 493 + 63 + 79 + 9 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 436622279076 + 42871358916 = 660774^2 + 207054^2 .

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a self number, because there is not a number n which added to its sum of digits gives 479493637992.

It is not an unprimeable number, because it can be changed into a prime (479493637999) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 319833 + ... + 1030184.

Almost surely, 2^479493637992 is an apocalyptic number.

It is an amenable number.

479493637992 is an abundant number, since it is smaller than the sum of its proper divisors (819399180348).

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

479493637992 is a wasteful number, since it uses less digits than its factorization.

479493637992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1354962 (or 1354955 counting only the distinct ones).

The product of its digits is 555532992, while the sum is 72.

The spelling of 479493637992 in words is "four hundred seventy-nine billion, four hundred ninety-three million, six hundred thirty-seven thousand, nine hundred ninety-two".