12645500618874 has 32 divisors (see below), whose sum is σ = 25863311052864. Its totient is φ = 4120629770880.

The previous prime is 12645500618857. The next prime is 12645500618887. The reversal of 12645500618874 is 47881600554621.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105923619 + ... + 106042934.

It is an arithmetic number, because the mean of its divisors is an integer number (808228470402).

Almost surely, 2^{12645500618874} is an apocalyptic number.

12645500618874 is an abundant number, since it is smaller than the sum of its proper divisors (13217810433990).

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

12645500618874 is a wasteful number, since it uses less digits than its factorization.

12645500618874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211966782.

The product of its (nonzero) digits is 12902400, while the sum is 57.

The spelling of 12645500618874 in words is "twelve trillion, six hundred forty-five billion, five hundred million, six hundred eighteen thousand, eight hundred seventy-four".