615325968 has 30 divisors (see below), whose sum is σ = 1722058494. Its totient is φ = 205108608.

The previous prime is 615325967. The next prime is 615325993. The reversal of 615325968 is 869523516.

615325968 is a `hidden beast` number, since 6 + 1 + 53 + 2 + 596 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 497646864 + 117679104 = 22308^2 + 10848^2 .

It is not an unprimeable number, because it can be changed into a prime (615325967) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2136405 + ... + 2136692.

Almost surely, 2^615325968 is an apocalyptic number.

It is an amenable number.

615325968 is an abundant number, since it is smaller than the sum of its proper divisors (1106732526).

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

615325968 is a wasteful number, since it uses less digits than its factorization.

615325968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4273111 (or 4273102 counting only the distinct ones).

The product of its digits is 388800, while the sum is 45.

The square root of 615325968 is about 24805.7648138492. The cubic root of 615325968 is about 850.5537190256.

The spelling of 615325968 in words is "six hundred fifteen million, three hundred twenty-five thousand, nine hundred sixty-eight".