25074074864 has 80 divisors (see below), whose sum is σ = 51560271360. Its totient is φ = 11787874560.

The previous prime is 25074074819. The next prime is 25074074873. The reversal of 25074074864 is 46847047052.

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, 10162559 + ... + 10165025.

It is an arithmetic number, because the mean of its divisors is an integer number (644503392).

Almost surely, 2^25074074864 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 25074074864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25780135680).

25074074864 is an abundant number, since it is smaller than the sum of its proper divisors (26486196496).

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

25074074864 is a wasteful number, since it uses less digits than its factorization.

25074074864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2958 (or 2952 counting only the distinct ones).

The product of its (nonzero) digits is 1505280, while the sum is 47.

The spelling of 25074074864 in words is "twenty-five billion, seventy-four million, seventy-four thousand, eight hundred sixty-four".