431956854636 has 24 divisors (see below), whose sum is σ = 1007950555584. Its totient is φ = 143978299920.

The previous prime is 431956854629. The next prime is 431956854647. The reversal of 431956854636 is 636458659134.

It is a self number, because there is not a number n which added to its sum of digits gives 431956854636.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 666150 + ... + 1143533.

It is an arithmetic number, because the mean of its divisors is an integer number (41997939816).

Almost surely, 2^431956854636 is an apocalyptic number.

It is an amenable number.

431956854636 is an abundant number, since it is smaller than the sum of its proper divisors (575993700948).

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

431956854636 is a wasteful number, since it uses less digits than its factorization.

431956854636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1829581 (or 1829579 counting only the distinct ones).

The product of its digits is 55987200, while the sum is 60.

The spelling of 431956854636 in words is "four hundred thirty-one billion, nine hundred fifty-six million, eight hundred fifty-four thousand, six hundred thirty-six".