25979460752 has 80 divisors (see below), whose sum is σ = 58579584000. Its totient is φ = 10931521536.

The previous prime is 25979460743. The next prime is 25979460827. The reversal of 25979460752 is 25706497952.

It is a Harshad number since it is a multiple of its sum of digits (56).

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, 1816124 + ... + 1830372.

It is an arithmetic number, because the mean of its divisors is an integer number (732244800).

Almost surely, 2^25979460752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25979460752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29289792000).

25979460752 is an abundant number, since it is smaller than the sum of its proper divisors (32600123248).

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

25979460752 is a wasteful number, since it uses less digits than its factorization.

25979460752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14560 (or 14554 counting only the distinct ones).

The product of its (nonzero) digits is 9525600, while the sum is 56.

The spelling of 25979460752 in words is "twenty-five billion, nine hundred seventy-nine million, four hundred sixty thousand, seven hundred fifty-two".