25797915711 has 24 divisors (see below), whose sum is σ = 37886694144. Its totient is φ = 16911236160.

The previous prime is 25797915709. The next prime is 25797915719. The reversal of 25797915711 is 11751979752.

25797915711 is a `hidden beast` number, since 2 + 579 + 7 + 9 + 1 + 57 + 11 = 666.

It is not a de Polignac number, because 25797915711 - 2¹ = 25797915709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25797915719) 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, 2408610 + ... + 2419296.

It is an arithmetic number, because the mean of its divisors is an integer number (1578612256).

Almost surely, 2^25797915711 is an apocalyptic number.

25797915711 is a deficient number, since it is larger than the sum of its proper divisors (12088778433).

25797915711 is a wasteful number, since it uses less digits than its factorization.

25797915711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15151 (or 15148 counting only the distinct ones).

The product of its digits is 1389150, while the sum is 54.

The spelling of 25797915711 in words is "twenty-five billion, seven hundred ninety-seven million, nine hundred fifteen thousand, seven hundred eleven".