25216927680 has 896 divisors, whose sum is σ = 104121630720. Its totient is φ = 5036359680.

The previous prime is 25216927663. The next prime is 25216927691. The reversal of 25216927680 is 8672961252.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 91035702 + ... + 91035978.

Almost surely, 2^25216927680 is an apocalyptic number.

25216927680 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 25216927680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52060815360).

25216927680 is an abundant number, since it is smaller than the sum of its proper divisors (78904703040).

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

25216927680 is a wasteful number, since it uses less digits than its factorization.

25216927680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377 (or 367 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 48.

The spelling of 25216927680 in words is "twenty-five billion, two hundred sixteen million, nine hundred twenty-seven thousand, six hundred eighty".