478402928931 has 16 divisors (see below), whose sum is σ = 640278120960. Its totient is φ = 317731710240.

The previous prime is 478402928923. The next prime is 478402928947. The reversal of 478402928931 is 139829204874.

It is not a de Polignac number, because 478402928931 - 2³ = 478402928923 is a prime.

It is a super-2 number, since 2×478402928931² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (478402928131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16228201 + ... + 16257653.

It is an arithmetic number, because the mean of its divisors is an integer number (40017382560).

Almost surely, 2^478402928931 is an apocalyptic number.

478402928931 is a deficient number, since it is larger than the sum of its proper divisors (161875192029).

478402928931 is a wasteful number, since it uses less digits than its factorization.

478402928931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49706.

The product of its (nonzero) digits is 6967296, while the sum is 57.

The spelling of 478402928931 in words is "four hundred seventy-eight billion, four hundred two million, nine hundred twenty-eight thousand, nine hundred thirty-one".