12238678975265 has 16 divisors (see below), whose sum is σ = 14912633070720. Its totient is φ = 9640489635840.

The previous prime is 12238678975261. The next prime is 12238678975279. The reversal of 12238678975265 is 56257987683221.

It is not a de Polignac number, because 12238678975265 - 2² = 12238678975261 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (71).

It is not an unprimeable number, because it can be changed into a prime (12238678975261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22142579 + ... + 22688568.

It is an arithmetic number, because the mean of its divisors is an integer number (932039566920).

Almost surely, 2^{12238678975265} is an apocalyptic number.

It is an amenable number.

12238678975265 is a deficient number, since it is larger than the sum of its proper divisors (2673954095455).

12238678975265 is an equidigital number, since it uses as much as digits as its factorization.

12238678975265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44831992.

The product of its digits is 609638400, while the sum is 71.

The spelling of 12238678975265 in words is "twelve trillion, two hundred thirty-eight billion, six hundred seventy-eight million, nine hundred seventy-five thousand, two hundred sixty-five".