25890808679 has 8 divisors (see below), whose sum is σ = 27314190000. Its totient is φ = 24473498112.

The previous prime is 25890808649. The next prime is 25890808709. The reversal of 25890808679 is 97680809852.

It is an interprime number because it is at equal distance from previous prime (25890808649) and next prime (25890808709).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25890808679 - 2²⁸ = 25622373223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25890808609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1508924 + ... + 1525985.

It is an arithmetic number, because the mean of its divisors is an integer number (3414273750).

Almost surely, 2^25890808679 is an apocalyptic number.

25890808679 is a deficient number, since it is larger than the sum of its proper divisors (1423381321).

25890808679 is a wasteful number, since it uses less digits than its factorization.

25890808679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3035377.

The product of its (nonzero) digits is 17418240, while the sum is 62.

The spelling of 25890808679 in words is "twenty-five billion, eight hundred ninety million, eight hundred eight thousand, six hundred seventy-nine".