621567234048 has 104 divisors (see below), whose sum is σ = 1677280637088. Its totient is φ = 204692488192.

The previous prime is 621567234023. The next prime is 621567234053. The reversal of 621567234048 is 840432765126.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 621567233988 and 621567234006.

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, 715186 + ... + 1324622.

Almost surely, 2^621567234048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 621567234048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (838640318544).

621567234048 is an abundant number, since it is smaller than the sum of its proper divisors (1055713403040).

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

621567234048 is an equidigital number, since it uses as much as digits as its factorization.

621567234048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609547 (or 609525 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 48.

The spelling of 621567234048 in words is "six hundred twenty-one billion, five hundred sixty-seven million, two hundred thirty-four thousand, forty-eight".