681135500480 has 28 divisors (see below), whose sum is σ = 1621953911280. Its totient is φ = 272454200064.

The previous prime is 681135500443. The next prime is 681135500509. The reversal of 681135500480 is 84005531186.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1064273900 + ... + 1064274539.

Almost surely, 2^681135500480 is an apocalyptic number.

It is an amenable number.

681135500480 is an abundant number, since it is smaller than the sum of its proper divisors (940818410800).

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

681135500480 is a wasteful number, since it uses less digits than its factorization.

681135500480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2128548456 (or 2128548446 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 41.

The spelling of 681135500480 in words is "six hundred eighty-one billion, one hundred thirty-five million, five hundred thousand, four hundred eighty".