12340564356 has 12 divisors (see below), whose sum is σ = 28794650192. Its totient is φ = 4113521448.

The previous prime is 12340564349. The next prime is 12340564381. The reversal of 12340564356 is 65346504321.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

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, 514190170 + ... + 514190193.

Almost surely, 2^12340564356 is an apocalyptic number.

It is an amenable number.

12340564356 is an abundant number, since it is smaller than the sum of its proper divisors (16454085836).

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

12340564356 is a wasteful number, since it uses less digits than its factorization.

12340564356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1028380370 (or 1028380368 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 39.

The spelling of 12340564356 in words is "twelve billion, three hundred forty million, five hundred sixty-four thousand, three hundred fifty-six".