12347734864 has 20 divisors (see below), whose sum is σ = 23925498804. Its totient is φ = 6173412608.

The previous prime is 12347734859. The next prime is 12347734871. The reversal of 12347734864 is 46843774321.

It can be written as a sum of positive squares in 2 ways, for example, as 10320934464 + 2026800400 = 101592^2 + 45020^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 341124 + ... + 375580.

Almost surely, 2^12347734864 is an apocalyptic number.

It is an amenable number.

12347734864 is a deficient number, since it is larger than the sum of its proper divisors (11577763940).

12347734864 is a wasteful number, since it uses less digits than its factorization.

12347734864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56862 (or 56856 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 49.

The spelling of 12347734864 in words is "twelve billion, three hundred forty-seven million, seven hundred thirty-four thousand, eight hundred sixty-four".