621347322964 has 24 divisors (see below), whose sum is σ = 1092650406120. Its totient is φ = 309163021824.

The previous prime is 621347322919. The next prime is 621347322997. The reversal of 621347322964 is 469223743126.

621347322964 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 888636100 + 620458686864 = 29810^2 + 787692^2 .

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

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, 1443642 + ... + 1823950.

It is an arithmetic number, because the mean of its divisors is an integer number (45527100255).

Almost surely, 2^621347322964 is an apocalyptic number.

It is an amenable number.

621347322964 is a deficient number, since it is larger than the sum of its proper divisors (471303083156).

621347322964 is a wasteful number, since it uses less digits than its factorization.

621347322964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382299 (or 382297 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 49.

The spelling of 621347322964 in words is "six hundred twenty-one billion, three hundred forty-seven million, three hundred twenty-two thousand, nine hundred sixty-four".