25974509076 has 72 divisors (see below), whose sum is σ = 66797325504. Its totient is φ = 8508689280.

The previous prime is 25974509053. The next prime is 25974509101. The reversal of 25974509076 is 67090547952.

25974509076 is a `hidden beast` number, since 2 + 597 + 45 + 0 + 9 + 0 + 7 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 783795 + ... + 816261.

It is an arithmetic number, because the mean of its divisors is an integer number (927740632).

Almost surely, 2^25974509076 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 25974509076, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33398662752).

25974509076 is an abundant number, since it is smaller than the sum of its proper divisors (40822816428).

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

25974509076 is a wasteful number, since it uses less digits than its factorization.

25974509076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32861 (or 32856 counting only the distinct ones).

The product of its (nonzero) digits is 4762800, while the sum is 54.

The spelling of 25974509076 in words is "twenty-five billion, nine hundred seventy-four million, five hundred nine thousand, seventy-six".