25426490718 has 64 divisors (see below), whose sum is σ = 54434488320. Its totient is φ = 7900166400.

The previous prime is 25426490717. The next prime is 25426490779. The reversal of 25426490718 is 81709462452.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25426490711) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2319346 + ... + 2330282.

It is an arithmetic number, because the mean of its divisors is an integer number (850538880).

Almost surely, 2^25426490718 is an apocalyptic number.

25426490718 is an abundant number, since it is smaller than the sum of its proper divisors (29007997602).

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

25426490718 is a wasteful number, since it uses less digits than its factorization.

25426490718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11433.

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 25426490718 in words is "twenty-five billion, four hundred twenty-six million, four hundred ninety thousand, seven hundred eighteen".