431624111728 has 40 divisors (see below), whose sum is σ = 882549205200. Its totient is φ = 203927883264.

The previous prime is 431624111713. The next prime is 431624111797. The reversal of 431624111728 is 827111426134.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1706701 + ... + 1943212.

It is an arithmetic number, because the mean of its divisors is an integer number (22063730130).

Almost surely, 2^431624111728 is an apocalyptic number.

It is an amenable number.

431624111728 is an abundant number, since it is smaller than the sum of its proper divisors (450925093472).

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

431624111728 is a wasteful number, since it uses less digits than its factorization.

431624111728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3650329 (or 3650323 counting only the distinct ones).

The product of its digits is 64512, while the sum is 40.

The spelling of 431624111728 in words is "four hundred thirty-one billion, six hundred twenty-four million, one hundred eleven thousand, seven hundred twenty-eight".