25738726827 has 32 divisors (see below), whose sum is σ = 39948491520. Its totient is φ = 14575749120.

The previous prime is 25738726781. The next prime is 25738726831. The reversal of 25738726827 is 72862783752.

It is not a de Polignac number, because 25738726827 - 2⁸ = 25738726571 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (25738726837) 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, 235398 + ... + 326939.

It is an arithmetic number, because the mean of its divisors is an integer number (1248390360).

Almost surely, 2^25738726827 is an apocalyptic number.

25738726827 is a deficient number, since it is larger than the sum of its proper divisors (14209764693).

25738726827 is a wasteful number, since it uses less digits than its factorization.

25738726827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562443.

The product of its digits is 15805440, while the sum is 57.

The spelling of 25738726827 in words is "twenty-five billion, seven hundred thirty-eight million, seven hundred twenty-six thousand, eight hundred twenty-seven".