630990811008 has 96 divisors (see below), whose sum is σ = 1821939832440. Its totient is φ = 209612307456.

The previous prime is 630990810997. The next prime is 630990811013. The reversal of 630990811008 is 800118099036.

630990811008 is a `hidden beast` number, since 630 + 9 + 9 + 0 + 8 + 1 + 1 + 0 + 0 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 597166 + ... + 1272237.

Almost surely, 2^630990811008 is an apocalyptic number.

It is an amenable number.

630990811008 is an abundant number, since it is smaller than the sum of its proper divisors (1190949021432).

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

630990811008 is a wasteful number, since it uses less digits than its factorization.

630990811008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1869716 (or 1869701 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The spelling of 630990811008 in words is "six hundred thirty billion, nine hundred ninety million, eight hundred eleven thousand, eight".