645035712 has 56 divisors (see below), whose sum is σ = 1796491200. Its totient is φ = 203694336.

The previous prime is 645035701. The next prime is 645035723. The reversal of 645035712 is 217530546.

It is an interprime number because it is at equal distance from previous prime (645035701) and next prime (645035723).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84762 + ... + 92057.

It is an arithmetic number, because the mean of its divisors is an integer number (32080200).

Almost surely, 2^645035712 is an apocalyptic number.

It is an amenable number.

645035712 is an abundant number, since it is smaller than the sum of its proper divisors (1151455488).

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

645035712 is a wasteful number, since it uses less digits than its factorization.

645035712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176853 (or 176843 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 645035712 is about 25397.5532679823. The cubic root of 645035712 is about 864.0282055264.

The spelling of 645035712 in words is "six hundred forty-five million, thirty-five thousand, seven hundred twelve".