25762868389 has 4 divisors (see below), whose sum is σ = 25778361856. Its totient is φ = 25747374924.

The previous prime is 25762868377. The next prime is 25762868407. The reversal of 25762868389 is 98386826752.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25762868389 - 2¹³ = 25762860197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25762868389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25762863389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7744239 + ... + 7747564.

It is an arithmetic number, because the mean of its divisors is an integer number (6444590464).

Almost surely, 2^25762868389 is an apocalyptic number.

It is an amenable number.

25762868389 is a deficient number, since it is larger than the sum of its proper divisors (15493467).

25762868389 is a wasteful number, since it uses less digits than its factorization.

25762868389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15493466.

The product of its digits is 69672960, while the sum is 64.

The spelling of 25762868389 in words is "twenty-five billion, seven hundred sixty-two million, eight hundred sixty-eight thousand, three hundred eighty-nine".