139473374931 has 64 divisors (see below), whose sum is σ = 227931840000. Its totient is φ = 83589287040.

The previous prime is 139473374899. The next prime is 139473374947.

139473374931 is a `hidden beast` number, since 13 + 9 + 473 + 3 + 74 + 93 + 1 = 666.

139473374931 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 139473374931 - 2⁵ = 139473374899 is a prime.

It is a super-2 number, since 2×139473374931² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (139473370931) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10127056 + ... + 10140818.

It is an arithmetic number, because the mean of its divisors is an integer number (3561435000).

Almost surely, 2^139473374931 is an apocalyptic number.

139473374931 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

139473374931 is a deficient number, since it is larger than the sum of its proper divisors (88458465069).

139473374931 is a wasteful number, since it uses less digits than its factorization.

139473374931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14161 (or 14155 counting only the distinct ones).

The product of its digits is 5143824, while the sum is 54.

The spelling of 139473374931 in words is "one hundred thirty-nine billion, four hundred seventy-three million, three hundred seventy-four thousand, nine hundred thirty-one".