12648578835278 has 32 divisors (see below), whose sum is σ = 20428198315200. Its totient is φ = 5851840412160.

The previous prime is 12648578835239. The next prime is 12648578835289. The reversal of 12648578835278 is 87253887584621.

It is a congruent number.

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, 2772623 + ... + 5743221.

It is an arithmetic number, because the mean of its divisors is an integer number (638381197350).

Almost surely, 2^{12648578835278} is an apocalyptic number.

12648578835278 is a deficient number, since it is larger than the sum of its proper divisors (7779619479922).

12648578835278 is a wasteful number, since it uses less digits than its factorization.

12648578835278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2972732.

The product of its digits is 1445068800, while the sum is 74.

The spelling of 12648578835278 in words is "twelve trillion, six hundred forty-eight billion, five hundred seventy-eight million, eight hundred thirty-five thousand, two hundred seventy-eight".