637374968 has 16 divisors (see below), whose sum is σ = 1195803000. Its totient is φ = 318494176.

The previous prime is 637374967. The next prime is 637374989. The reversal of 637374968 is 869473736.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (637374967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9638 + ... + 36981.

Almost surely, 2^637374968 is an apocalyptic number.

It is an amenable number.

637374968 is a deficient number, since it is larger than the sum of its proper divisors (558428032).

637374968 is a wasteful number, since it uses less digits than its factorization.

637374968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48334 (or 48330 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 53.

The square root of 637374968 is about 25246.2862219377. The cubic root of 637374968 is about 860.5940406296.

The spelling of 637374968 in words is "six hundred thirty-seven million, three hundred seventy-four thousand, nine hundred sixty-eight".