25397867716992 has 384 divisors, whose sum is σ = 79309166096160. Its totient is φ = 8081709023232.

The previous prime is 25397867716973. The next prime is 25397867717003. The reversal of 25397867716992 is 29961776879352.

25397867716992 is a `hidden beast` number, since 2 + 5 + 397 + 8 + 67 + 7 + 169 + 9 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 60786748 + ... + 61203140.

Almost surely, 2^{25397867716992} 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 25397867716992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39654583048080).

25397867716992 is an abundant number, since it is smaller than the sum of its proper divisors (53911298379168).

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

25397867716992 is an equidigital number, since it uses as much as digits as its factorization.

25397867716992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416512 (or 416488 counting only the distinct ones).

The product of its digits is 4320812160, while the sum is 81.

The spelling of 25397867716992 in words is "twenty-five trillion, three hundred ninety-seven billion, eight hundred sixty-seven million, seven hundred sixteen thousand, nine hundred ninety-two".