12647747004 has 24 divisors (see below), whose sum is σ = 29688129408. Its totient is φ = 4190670000.

The previous prime is 12647746973. The next prime is 12647747039. The reversal of 12647747004 is 40074774621.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3153622 + ... + 3157629.

It is an arithmetic number, because the mean of its divisors is an integer number (1237005392).

Almost surely, 2^12647747004 is an apocalyptic number.

It is an amenable number.

12647747004 is an abundant number, since it is smaller than the sum of its proper divisors (17040382404).

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

12647747004 is a wasteful number, since it uses less digits than its factorization.

12647747004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6311425 (or 6311423 counting only the distinct ones).

The product of its (nonzero) digits is 263424, while the sum is 42.

The spelling of 12647747004 in words is "twelve billion, six hundred forty-seven million, seven hundred forty-seven thousand, four".