518763680 has 48 divisors (see below), whose sum is σ = 1258717320. Its totient is φ = 201894912.

The previous prime is 518763667. The next prime is 518763709. The reversal of 518763680 is 86367815.

It can be written as a sum of positive squares in 4 ways, for example, as 381499024 + 137264656 = 19532^2 + 11716^2 .

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, 37895 + ... + 49734.

Almost surely, 2^518763680 is an apocalyptic number.

It is an amenable number.

518763680 is an abundant number, since it is smaller than the sum of its proper divisors (739953640).

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

518763680 is a wasteful number, since it uses less digits than its factorization.

518763680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87681 (or 87673 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 518763680 is about 22776.3842608962. The cubic root of 518763680 is about 803.5073506426.

The spelling of 518763680 in words is "five hundred eighteen million, seven hundred sixty-three thousand, six hundred eighty".