25873768418 has 16 divisors (see below), whose sum is σ = 39452310456. Its totient is φ = 12723056640.

The previous prime is 25873768399. The next prime is 25873768423. The reversal of 25873768418 is 81486737852.

It can be written as a sum of positive squares in 4 ways, for example, as 9903633289 + 15970135129 = 99517^2 + 126373^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1765730 + ... + 1780322.

Almost surely, 2^25873768418 is an apocalyptic number.

25873768418 is a deficient number, since it is larger than the sum of its proper divisors (13578542038).

25873768418 is a wasteful number, since it uses less digits than its factorization.

25873768418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29189.

The product of its digits is 18063360, while the sum is 59.

The spelling of 25873768418 in words is "twenty-five billion, eight hundred seventy-three million, seven hundred sixty-eight thousand, four hundred eighteen".