25647076672 has 168 divisors, whose sum is σ = 60418431360. Its totient is φ = 10768020480.

The previous prime is 25647076669. The next prime is 25647076687. The reversal of 25647076672 is 27667074652.

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, 50987973 + ... + 50988475.

It is an arithmetic number, because the mean of its divisors is an integer number (359633520).

Almost surely, 2^25647076672 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 25647076672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30209215680).

25647076672 is an abundant number, since it is smaller than the sum of its proper divisors (34771354688).

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

25647076672 is a wasteful number, since it uses less digits than its factorization.

25647076672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829 (or 812 counting only the distinct ones).

The product of its (nonzero) digits is 5927040, while the sum is 52.

The spelling of 25647076672 in words is "twenty-five billion, six hundred forty-seven million, seventy-six thousand, six hundred seventy-two".