12876618690 has 72 divisors (see below), whose sum is σ = 36252676980. Its totient is φ = 3169625472.

The previous prime is 12876618683. The next prime is 12876618691. The reversal of 12876618690 is 9681667821.

12876618690 is a `hidden beast` number, since 12 + 8 + 7 + 6 + 618 + 6 + 9 + 0 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 125014761 + 12751603929 = 11181^2 + 112923^2 .

It is a super-2 number, since 2×12876618690² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (12876618691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 408085 + ... + 438504.

Almost surely, 2^12876618690 is an apocalyptic number.

12876618690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12876618690 is an abundant number, since it is smaller than the sum of its proper divisors (23376058290).

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

12876618690 is a wasteful number, since it uses less digits than its factorization.

12876618690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846628 (or 846612 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

It can be divided in two parts, 128766 and 18690, that added together give a square (147456 = 384²).

The spelling of 12876618690 in words is "twelve billion, eight hundred seventy-six million, six hundred eighteen thousand, six hundred ninety".