25648426944 has 84 divisors (see below), whose sum is σ = 84018967344. Its totient is φ = 7328120832.

The previous prime is 25648426943. The next prime is 25648426967. The reversal of 25648426944 is 44962484652.

25648426944 is a `hidden beast` number, since 2 + 56 + 484 + 26 + 94 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (84).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25648426943) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3176577 + ... + 3184640.

Almost surely, 2^25648426944 is an apocalyptic number.

25648426944 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

25648426944 is an abundant number, since it is smaller than the sum of its proper divisors (58370540400).

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

25648426944 is a wasteful number, since it uses less digits than its factorization.

25648426944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6361242 (or 6361229 counting only the distinct ones).

The product of its digits is 13271040, while the sum is 54.

The spelling of 25648426944 in words is "twenty-five billion, six hundred forty-eight million, four hundred twenty-six thousand, nine hundred forty-four".