12618947275 has 24 divisors (see below), whose sum is σ = 17077241808. Its totient is φ = 9173520000.

The previous prime is 12618947249. The next prime is 12618947281. The reversal of 12618947275 is 57274981621.

It is not a de Polignac number, because 12618947275 - 2¹⁹ = 12618422987 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 745405 + ... + 762145.

It is an arithmetic number, because the mean of its divisors is an integer number (711551742).

Almost surely, 2^12618947275 is an apocalyptic number.

12618947275 is a deficient number, since it is larger than the sum of its proper divisors (4458294533).

12618947275 is a wasteful number, since it uses less digits than its factorization.

12618947275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19503 (or 19498 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 52.

The spelling of 12618947275 in words is "twelve billion, six hundred eighteen million, nine hundred forty-seven thousand, two hundred seventy-five".