621132432424 has 32 divisors (see below), whose sum is σ = 1337966668800. Its totient is φ = 264805894080.

The previous prime is 621132432409. The next prime is 621132432433. The reversal of 621132432424 is 424234231126.

It is a self number, because there is not a number n which added to its sum of digits gives 621132432424.

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, 29025039 + ... + 29046430.

It is an arithmetic number, because the mean of its divisors is an integer number (41811458400).

Almost surely, 2^621132432424 is an apocalyptic number.

It is an amenable number.

621132432424 is an abundant number, since it is smaller than the sum of its proper divisors (716834236376).

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

621132432424 is a wasteful number, since it uses less digits than its factorization.

621132432424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58071673 (or 58071669 counting only the distinct ones).

The product of its digits is 55296, while the sum is 34.

The spelling of 621132432424 in words is "six hundred twenty-one billion, one hundred thirty-two million, four hundred thirty-two thousand, four hundred twenty-four".