621204320475 has 24 divisors (see below), whose sum is σ = 1141175345520. Its totient is φ = 331308970560.

The previous prime is 621204320467. The next prime is 621204320479. The reversal of 621204320475 is 574023402126.

621204320475 is a `hidden beast` number, since 6 + 2 + 120 + 43 + 20 + 475 = 666.

It is not a de Polignac number, because 621204320475 - 2³ = 621204320467 is a prime.

It is not an unprimeable number, because it can be changed into a prime (621204320479) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 460150674 + ... + 460152023.

It is an arithmetic number, because the mean of its divisors is an integer number (47548972730).

Almost surely, 2^621204320475 is an apocalyptic number.

621204320475 is a deficient number, since it is larger than the sum of its proper divisors (519971025045).

621204320475 is a wasteful number, since it uses less digits than its factorization.

621204320475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920302716 (or 920302705 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The spelling of 621204320475 in words is "six hundred twenty-one billion, two hundred four million, three hundred twenty thousand, four hundred seventy-five".