718563980 has 48 divisors (see below), whose sum is σ = 1523343360. Its totient is φ = 284707008.

The previous prime is 718563971. The next prime is 718564003. The reversal of 718563980 is 89365817.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1636601 + ... + 1637039.

It is an arithmetic number, because the mean of its divisors is an integer number (31736320).

Almost surely, 2^718563980 is an apocalyptic number.

It is an amenable number.

718563980 is an abundant number, since it is smaller than the sum of its proper divisors (804779380).

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

718563980 is a wasteful number, since it uses less digits than its factorization.

718563980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038 (or 1036 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 47.

The square root of 718563980 is about 26806.0437215192. The cubic root of 718563980 is about 895.6846835715.

The spelling of 718563980 in words is "seven hundred eighteen million, five hundred sixty-three thousand, nine hundred eighty".