621324499959 has 20 divisors (see below), whose sum is σ = 929494697560. Its totient is φ = 413616851280.

The previous prime is 621324499931. The next prime is 621324499981. The reversal of 621324499959 is 959994423126.

621324499959 is a `hidden beast` number, since 6 + 2 + 132 + 4 + 499 + 9 + 5 + 9 = 666.

It is not a de Polignac number, because 621324499959 - 2⁵ = 621324499927 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 621324499896 and 621324499905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (621324498959) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5494444 + ... + 5606385.

It is an arithmetic number, because the mean of its divisors is an integer number (46474734878).

Almost surely, 2^621324499959 is an apocalyptic number.

621324499959 is a deficient number, since it is larger than the sum of its proper divisors (308170197601).

621324499959 is a wasteful number, since it uses less digits than its factorization.

621324499959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11101532 (or 11101523 counting only the distinct ones).

The product of its digits is 37791360, while the sum is 63.

The spelling of 621324499959 in words is "six hundred twenty-one billion, three hundred twenty-four million, four hundred ninety-nine thousand, nine hundred fifty-nine".