25994928960 has 1344 divisors, whose sum is σ = 122698727424. Its totient is φ = 4877107200.

The previous prime is 25994928899. The next prime is 25994928977. The reversal of 25994928960 is 6982949952.

25994928960 is a `hidden beast` number, since 2 + 5 + 9 + 9 + 492 + 89 + 60 = 666.

It is a tau number, because it is divible by the number of its divisors (1344).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 204684417 + ... + 204684543.

It is an arithmetic number, because the mean of its divisors is an integer number (91293696).

Almost surely, 2^25994928960 is an apocalyptic number.

25994928960 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 25994928960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61349363712).

25994928960 is an abundant number, since it is smaller than the sum of its proper divisors (96703798464).

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

25994928960 is a wasteful number, since it uses less digits than its factorization.

25994928960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252 (or 239 counting only the distinct ones).

The product of its (nonzero) digits is 25194240, while the sum is 63.

The spelling of 25994928960 in words is "twenty-five billion, nine hundred ninety-four million, nine hundred twenty-eight thousand, nine hundred sixty".