12578704053891 has 32 divisors (see below), whose sum is σ = 17305547669760. Its totient is φ = 8121813580800.

The previous prime is 12578704053863. The next prime is 12578704053893. The reversal of 12578704053891 is 19835040787521.

It is not a de Polignac number, because 12578704053891 - 2²⁵ = 12578670499459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12578704053893) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 447260556 + ... + 447288678.

It is an arithmetic number, because the mean of its divisors is an integer number (540798364680).

Almost surely, 2^{12578704053891} is an apocalyptic number.

12578704053891 is a deficient number, since it is larger than the sum of its proper divisors (4726843615869).

12578704053891 is a wasteful number, since it uses less digits than its factorization.

12578704053891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54467.

The product of its (nonzero) digits is 16934400, while the sum is 60.

The spelling of 12578704053891 in words is "twelve trillion, five hundred seventy-eight billion, seven hundred four million, fifty-three thousand, eight hundred ninety-one".