630687385568 has 24 divisors (see below), whose sum is σ = 1268084214432. Its totient is φ = 308634251776.

The previous prime is 630687385553. The next prime is 630687385579. The reversal of 630687385568 is 865583786036.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209668505 + ... + 209671512.

It is an arithmetic number, because the mean of its divisors is an integer number (52836842268).

Almost surely, 2^630687385568 is an apocalyptic number.

It is an amenable number.

630687385568 is an abundant number, since it is smaller than the sum of its proper divisors (637396828864).

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

630687385568 is a wasteful number, since it uses less digits than its factorization.

630687385568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419340074 (or 419340066 counting only the distinct ones).

The product of its (nonzero) digits is 174182400, while the sum is 65.

The spelling of 630687385568 in words is "six hundred thirty billion, six hundred eighty-seven million, three hundred eighty-five thousand, five hundred sixty-eight".