12457879884 has 72 divisors (see below), whose sum is σ = 31852941120. Its totient is φ = 4105043712.

The previous prime is 12457879859. The next prime is 12457879901. The reversal of 12457879884 is 48897875421.

12457879884 is a `hidden beast` number, since 12 + 457 + 8 + 7 + 98 + 84 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1813384 + ... + 1820240.

It is an arithmetic number, because the mean of its divisors is an integer number (442401960).

Almost surely, 2^12457879884 is an apocalyptic number.

It is an amenable number.

12457879884 is an abundant number, since it is smaller than the sum of its proper divisors (19395061236).

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

12457879884 is a wasteful number, since it uses less digits than its factorization.

12457879884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7439 (or 7434 counting only the distinct ones).

The product of its digits is 36126720, while the sum is 63.

The spelling of 12457879884 in words is "twelve billion, four hundred fifty-seven million, eight hundred seventy-nine thousand, eight hundred eighty-four".