12889515024 has 45 divisors (see below), whose sum is σ = 36076553149. Its totient is φ = 4296050880.

The previous prime is 12889515019. The next prime is 12889515053. The reversal of 12889515024 is 42051598821.

The square root of 12889515024 is 113532.

It is a perfect power (a square), and thus also a powerful number.

12889515024 is a `hidden beast` number, since 12 + 8 + 89 + 51 + 502 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 9708555024 + 3180960000 = 98532^2 + 56400^2 .

It is a super-2 number, since 2×12889515024² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1357654 + ... + 1367114.

Almost surely, 2^12889515024 is an apocalyptic number.

12889515024 is the 113532-nd square number.

It is an amenable number.

12889515024 is an abundant number, since it is smaller than the sum of its proper divisors (23187038125).

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

12889515024 is an frugal number, since it uses more digits than its factorization.

12889515024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18936 (or 9466 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 45.

The spelling of 12889515024 in words is "twelve billion, eight hundred eighty-nine million, five hundred fifteen thousand, twenty-four".