25536736791 has 6 divisors (see below), whose sum is σ = 36886397600. Its totient is φ = 17024491188.

The previous prime is 25536736781. The next prime is 25536736829. The reversal of 25536736791 is 19763763552.

25536736791 is a `hidden beast` number, since 2 + 5 + 536 + 7 + 36 + 79 + 1 = 666.

It is not a de Polignac number, because 25536736791 - 2⁵ = 25536736759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25536736721) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1418707591 + ... + 1418707608.

Almost surely, 2^25536736791 is an apocalyptic number.

25536736791 is a deficient number, since it is larger than the sum of its proper divisors (11349660809).

25536736791 is a wasteful number, since it uses less digits than its factorization.

25536736791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2837415205 (or 2837415202 counting only the distinct ones).

The product of its digits is 7144200, while the sum is 54.

The spelling of 25536736791 in words is "twenty-five billion, five hundred thirty-six million, seven hundred thirty-six thousand, seven hundred ninety-one".