630868995 has 24 divisors (see below), whose sum is σ = 1095262272. Its totient is φ = 335923200.

The previous prime is 630868969. The next prime is 630868999. The reversal of 630868995 is 599868036.

It is a de Polignac number, because none of the positive numbers 2^k-630868995 is a prime.

It is not an unprimeable number, because it can be changed into a prime (630868999) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17910 + ... + 39780.

It is an arithmetic number, because the mean of its divisors is an integer number (45635928).

Almost surely, 2^630868995 is an apocalyptic number.

630868995 is a deficient number, since it is larger than the sum of its proper divisors (464393277).

630868995 is a wasteful number, since it uses less digits than its factorization.

630868995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22523 (or 22520 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 54.

The square root of 630868995 is about 25117.1056254498. The cubic root of 630868995 is about 857.6558639120.

The spelling of 630868995 in words is "six hundred thirty million, eight hundred sixty-eight thousand, nine hundred ninety-five".