680118538 has 16 divisors (see below), whose sum is σ = 1113330240. Its totient is φ = 309031200.

The previous prime is 680118511. The next prime is 680118539. The reversal of 680118538 is 835811086.

It is a super-2 number, since 2×680118538² = 925122451462514888, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 680118538.

It is not an unprimeable number, because it can be changed into a prime (680118539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95998 + ... + 102838.

It is an arithmetic number, because the mean of its divisors is an integer number (69583140).

Almost surely, 2^680118538 is an apocalyptic number.

680118538 is a deficient number, since it is larger than the sum of its proper divisors (433211702).

680118538 is a wasteful number, since it uses less digits than its factorization.

680118538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11373.

The product of its (nonzero) digits is 46080, while the sum is 40.

The square root of 680118538 is about 26079.0823841637. The cubic root of 680118538 is about 879.4170286585.

The spelling of 680118538 in words is "six hundred eighty million, one hundred eighteen thousand, five hundred thirty-eight".