25864279360680 has 128 divisors (see below), whose sum is σ = 80103582720000. Its totient is φ = 6674006918400.

The previous prime is 25864279360657. The next prime is 25864279360693. The reversal of 25864279360680 is 8606397246852.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38725165 + ... + 39387395.

It is an arithmetic number, because the mean of its divisors is an integer number (625809240000).

Almost surely, 2^{25864279360680} is an apocalyptic number.

25864279360680 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 25864279360680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40051791360000).

25864279360680 is an abundant number, since it is smaller than the sum of its proper divisors (54239303359320).

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

25864279360680 is a wasteful number, since it uses less digits than its factorization.

25864279360680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672775 (or 672771 counting only the distinct ones).

The product of its (nonzero) digits is 209018880, while the sum is 66.

The spelling of 25864279360680 in words is "twenty-five trillion, eight hundred sixty-four billion, two hundred seventy-nine million, three hundred sixty thousand, six hundred eighty".