25880794915 has 4 divisors (see below), whose sum is σ = 31056953904. Its totient is φ = 20704635928.

The previous prime is 25880794903. The next prime is 25880794931. The reversal of 25880794915 is 51949708852.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25880794915 - 2⁹ = 25880794403 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 25880794915.

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 3 ways as a sum of consecutive naturals, for example, 2588079487 + ... + 2588079496.

It is an arithmetic number, because the mean of its divisors is an integer number (7764238476).

Almost surely, 2^25880794915 is an apocalyptic number.

25880794915 is a deficient number, since it is larger than the sum of its proper divisors (5176158989).

25880794915 is an equidigital number, since it uses as much as digits as its factorization.

25880794915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5176158988.

The product of its (nonzero) digits is 7257600, while the sum is 58.

The spelling of 25880794915 in words is "twenty-five billion, eight hundred eighty million, seven hundred ninety-four thousand, nine hundred fifteen".