25662795782 has 48 divisors (see below), whose sum is σ = 43646163120. Its totient is φ = 11245440960.

The previous prime is 25662795761. The next prime is 25662795799. The reversal of 25662795782 is 28759726652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1314569 + ... + 1333947.

It is an arithmetic number, because the mean of its divisors is an integer number (909295065).

Almost surely, 2^25662795782 is an apocalyptic number.

25662795782 is a deficient number, since it is larger than the sum of its proper divisors (17983367338).

25662795782 is a wasteful number, since it uses less digits than its factorization.

25662795782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19509 (or 19478 counting only the distinct ones).

The product of its digits is 25401600, while the sum is 59.

The spelling of 25662795782 in words is "twenty-five billion, six hundred sixty-two million, seven hundred ninety-five thousand, seven hundred eighty-two".