25079207994 has 12 divisors (see below), whose sum is σ = 54338284026. Its totient is φ = 8359735992.

The previous prime is 25079207987. The next prime is 25079208043. The reversal of 25079207994 is 49970297052.

It can be written as a sum of positive squares in only one way, i.e., 19568372769 + 5510835225 = 139887^2 + 74235^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 25079207994.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 696644649 + ... + 696644684.

Almost surely, 2^25079207994 is an apocalyptic number.

25079207994 is an abundant number, since it is smaller than the sum of its proper divisors (29259076032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25079207994 is a wasteful number, since it uses less digits than its factorization.

25079207994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1393289341 (or 1393289338 counting only the distinct ones).

The product of its (nonzero) digits is 2857680, while the sum is 54.

The spelling of 25079207994 in words is "twenty-five billion, seventy-nine million, two hundred seven thousand, nine hundred ninety-four".