621494700469632 has 960 divisors, whose sum is σ = 2059498157713920. Its totient is φ = 185890940928000.

The previous prime is 621494700469469. The next prime is 621494700469681. The reversal of 621494700469632 is 236964007494126.

621494700469632 is a `hidden beast` number, since 6 + 2 + 1 + 4 + 9 + 470 + 0 + 46 + 96 + 32 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 621494700469632.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 31387026132 + ... + 31387045932.

It is an arithmetic number, because the mean of its divisors is an integer number (2145310580952).

Almost surely, 2^{621494700469632} 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 621494700469632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1029749078856960).

621494700469632 is an abundant number, since it is smaller than the sum of its proper divisors (1438003457244288).

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

621494700469632 is a wasteful number, since it uses less digits than its factorization.

621494700469632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20173 (or 20141 counting only the distinct ones).

The product of its (nonzero) digits is 94058496, while the sum is 63.

The spelling of 621494700469632 in words is "six hundred twenty-one trillion, four hundred ninety-four billion, seven hundred million, four hundred sixty-nine thousand, six hundred thirty-two".