431332138156 has 12 divisors (see below), whose sum is σ = 754847716168. Its totient is φ = 215661362112.

The previous prime is 431332138123. The next prime is 431332138187. The reversal of 431332138156 is 651831233134.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 966381 + ... + 1340356.

Almost surely, 2^431332138156 is an apocalyptic number.

It is an amenable number.

431332138156 is a deficient number, since it is larger than the sum of its proper divisors (323515578012).

431332138156 is a wasteful number, since it uses less digits than its factorization.

431332138156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2353488 (or 2353486 counting only the distinct ones).

The product of its digits is 155520, while the sum is 40.

The spelling of 431332138156 in words is "four hundred thirty-one billion, three hundred thirty-two million, one hundred thirty-eight thousand, one hundred fifty-six".