25494848736 has 96 divisors (see below), whose sum is σ = 80510088960. Its totient is φ = 6900857856.

The previous prime is 25494848723. The next prime is 25494848747. The reversal of 25494848736 is 63784849452.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 25494848736.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 985621 + ... + 1011156.

It is an arithmetic number, because the mean of its divisors is an integer number (838646760).

Almost surely, 2^25494848736 is an apocalyptic number.

It is an amenable number.

25494848736 is an abundant number, since it is smaller than the sum of its proper divisors (55015240224).

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

25494848736 is a wasteful number, since it uses less digits than its factorization.

25494848736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1996816 (or 1996808 counting only the distinct ones).

The product of its digits is 46448640, while the sum is 60.

The spelling of 25494848736 in words is "twenty-five billion, four hundred ninety-four million, eight hundred forty-eight thousand, seven hundred thirty-six".