12647259952 has 20 divisors (see below), whose sum is σ = 24530992416. Its totient is φ = 6316681280.

The previous prime is 12647259949. The next prime is 12647259967. The reversal of 12647259952 is 25995274621.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12647259952.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 419263 + ... + 448414.

Almost surely, 2^12647259952 is an apocalyptic number.

It is an amenable number.

12647259952 is a deficient number, since it is larger than the sum of its proper divisors (11883732464).

12647259952 is an equidigital number, since it uses as much as digits as its factorization.

12647259952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868596 (or 868590 counting only the distinct ones).

The product of its digits is 2721600, while the sum is 52.

The spelling of 12647259952 in words is "twelve billion, six hundred forty-seven million, two hundred fifty-nine thousand, nine hundred fifty-two".