25814712091 has 24 divisors (see below), whose sum is σ = 30171089520. Its totient is φ = 22022707392.

The previous prime is 25814712073. The next prime is 25814712103. The reversal of 25814712091 is 19021741852.

It is not a de Polignac number, because 25814712091 - 2⁵ = 25814712059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25814712191) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18064165 + ... + 18065593.

It is an arithmetic number, because the mean of its divisors is an integer number (1257128730).

Almost surely, 2^25814712091 is an apocalyptic number.

25814712091 is a deficient number, since it is larger than the sum of its proper divisors (4356377429).

25814712091 is a wasteful number, since it uses less digits than its factorization.

25814712091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2923 (or 2916 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 40.

The spelling of 25814712091 in words is "twenty-five billion, eight hundred fourteen million, seven hundred twelve thousand, ninety-one".