621088307796 has 24 divisors (see below), whose sum is σ = 1580952056544. Its totient is φ = 188208578080.

The previous prime is 621088307783. The next prime is 621088307837. The reversal of 621088307796 is 697703880126.

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, 2352607095 + ... + 2352607358.

It is an arithmetic number, because the mean of its divisors is an integer number (65873002356).

Almost surely, 2^621088307796 is an apocalyptic number.

621088307796 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

621088307796 is an abundant number, since it is smaller than the sum of its proper divisors (959863748748).

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

621088307796 is a wasteful number, since it uses less digits than its factorization.

621088307796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4705214471 (or 4705214469 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 57.

The spelling of 621088307796 in words is "six hundred twenty-one billion, eighty-eight million, three hundred seven thousand, seven hundred ninety-six".