12947641808 has 20 divisors (see below), whose sum is σ = 26406375360. Its totient is φ = 6133093344.

The previous prime is 12947641783. The next prime is 12947641829. The reversal of 12947641808 is 80814674921.

12947641808 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21295160 + ... + 21295767.

It is an arithmetic number, because the mean of its divisors is an integer number (1320318768).

Almost surely, 2^12947641808 is an apocalyptic number.

It is an amenable number.

12947641808 is an abundant number, since it is smaller than the sum of its proper divisors (13458733552).

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

12947641808 is a wasteful number, since it uses less digits than its factorization.

12947641808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42590954 (or 42590948 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 50.

The spelling of 12947641808 in words is "twelve billion, nine hundred forty-seven million, six hundred forty-one thousand, eight hundred eight".