25910707680 has 1440 divisors, whose sum is σ = 114460625664. Its totient is φ = 5474304000.

The previous prime is 25910707601. The next prime is 25910707699. The reversal of 25910707680 is 8670701952.

It is a tau number, because it is divible by the number of its divisors (1440).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 631968460 + ... + 631968500.

Almost surely, 2^25910707680 is an apocalyptic number.

25910707680 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 25910707680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57230312832).

25910707680 is an abundant number, since it is smaller than the sum of its proper divisors (88549917984).

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

25910707680 is a wasteful number, since it uses less digits than its factorization.

25910707680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 45.

The spelling of 25910707680 in words is "twenty-five billion, nine hundred ten million, seven hundred seven thousand, six hundred eighty".