631275572136 has 64 divisors (see below), whose sum is σ = 1721741446080. Its totient is φ = 191286650880.

The previous prime is 631275572129. The next prime is 631275572167.

631275572136 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7507800 + ... + 7591416.

It is an arithmetic number, because the mean of its divisors is an integer number (26902210095).

Almost surely, 2^631275572136 is an apocalyptic number.

631275572136 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

631275572136 is an abundant number, since it is smaller than the sum of its proper divisors (1090465873944).

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

631275572136 is a wasteful number, since it uses less digits than its factorization.

631275572136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112234 (or 112230 counting only the distinct ones).

The product of its digits is 1587600, while the sum is 48.

The spelling of 631275572136 in words is "six hundred thirty-one billion, two hundred seventy-five million, five hundred seventy-two thousand, one hundred thirty-six".