12947512986 has 32 divisors (see below), whose sum is σ = 29095545600. Its totient is φ = 4267343520.

The previous prime is 12947512973. The next prime is 12947513023. The reversal of 12947512986 is 68921574921.

It is a happy number.

12947512986 is a `hidden beast` number, since 1 + 2 + 9 + 47 + 512 + 9 + 86 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1342210 + ... + 1351821.

It is an arithmetic number, because the mean of its divisors is an integer number (909235800).

Almost surely, 2^12947512986 is an apocalyptic number.

12947512986 is an abundant number, since it is smaller than the sum of its proper divisors (16148032614).

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

12947512986 is a wasteful number, since it uses less digits than its factorization.

12947512986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2694131 (or 2694125 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 54.

The spelling of 12947512986 in words is "twelve billion, nine hundred forty-seven million, five hundred twelve thousand, nine hundred eighty-six".