12456700464 has 40 divisors (see below), whose sum is σ = 34655181232. Its totient is φ = 3832830720.

The previous prime is 12456700463. The next prime is 12456700469. The reversal of 12456700464 is 46400765421.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (12456700463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9980707 + ... + 9981954.

Almost surely, 2^12456700464 is an apocalyptic number.

It is an amenable number.

12456700464 is an abundant number, since it is smaller than the sum of its proper divisors (22198480768).

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

12456700464 is a wasteful number, since it uses less digits than its factorization.

12456700464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19962685 (or 19962679 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 39.

The spelling of 12456700464 in words is "twelve billion, four hundred fifty-six million, seven hundred thousand, four hundred sixty-four".