25997967360 has 384 divisors, whose sum is σ = 93605999760. Its totient is φ = 6922174464.

The previous prime is 25997967343. The next prime is 25997967439. The reversal of 25997967360 is 6376979952.

25997967360 is a `hidden beast` number, since 2 + 599 + 7 + 9 + 6 + 7 + 36 + 0 = 666.

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

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, 39812794 + ... + 39813446.

Almost surely, 2^25997967360 is an apocalyptic number.

25997967360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25997967360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46802999880).

25997967360 is an abundant number, since it is smaller than the sum of its proper divisors (67608032400).

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

25997967360 is an frugal number, since it uses more digits than its factorization.

25997967360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703 (or 663 counting only the distinct ones).

The product of its (nonzero) digits is 38578680, while the sum is 63.

The spelling of 25997967360 in words is "twenty-five billion, nine hundred ninety-seven million, nine hundred sixty-seven thousand, three hundred sixty".