12652078857 has 16 divisors (see below), whose sum is σ = 18750253248. Its totient is φ = 7523247680.

The previous prime is 12652078847. The next prime is 12652078871. The reversal of 12652078857 is 75887025621.

It is a cyclic number.

It is not a de Polignac number, because 12652078857 - 2⁸ = 12652078601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12652078837) 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, 3615198 + ... + 3618695.

It is an arithmetic number, because the mean of its divisors is an integer number (1171890828).

Almost surely, 2^12652078857 is an apocalyptic number.

It is an amenable number.

12652078857 is a deficient number, since it is larger than the sum of its proper divisors (6098174391).

12652078857 is a wasteful number, since it uses less digits than its factorization.

12652078857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7233960.

The product of its (nonzero) digits is 1881600, while the sum is 51.

The spelling of 12652078857 in words is "twelve billion, six hundred fifty-two million, seventy-eight thousand, eight hundred fifty-seven".