630926765568 has 800 divisors, whose sum is σ = 2191018515840. Its totient is φ = 178741002240.

The previous prime is 630926765563. The next prime is 630926765621. The reversal of 630926765568 is 865567629036.

630926765568 is a `hidden beast` number, since 6 + 3 + 0 + 9 + 2 + 6 + 7 + 65 + 568 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630926765563) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 719414346 + ... + 719415222.

Almost surely, 2^630926765568 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 630926765568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1095509257920).

630926765568 is an abundant number, since it is smaller than the sum of its proper divisors (1560091750272).

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

630926765568 is a wasteful number, since it uses less digits than its factorization.

630926765568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020 (or 995 counting only the distinct ones).

The product of its (nonzero) digits is 97977600, while the sum is 63.

The spelling of 630926765568 in words is "six hundred thirty billion, nine hundred twenty-six million, seven hundred sixty-five thousand, five hundred sixty-eight".