621025992512480 has 48 divisors (see below), whose sum is σ = 1468185054591024. Its totient is φ = 248239197465600.

The previous prime is 621025992512437. The next prime is 621025992512501. The reversal of 621025992512480 is 84215299520126.

It is a super-2 number, since 2×621025992512480² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1337263517 + ... + 1337727836.

It is an arithmetic number, because the mean of its divisors is an integer number (30587188637313).

Almost surely, 2^{621025992512480} is an apocalyptic number.

It is an amenable number.

621025992512480 is an abundant number, since it is smaller than the sum of its proper divisors (847159062078544).

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

621025992512480 is a wasteful number, since it uses less digits than its factorization.

621025992512480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2674992819 (or 2674992811 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 56.

The spelling of 621025992512480 in words is "six hundred twenty-one trillion, twenty-five billion, nine hundred ninety-two million, five hundred twelve thousand, four hundred eighty".