25866727920000 has 2240 divisors, whose sum is σ = 107211729327120. Its totient is φ = 6158592000000.

The previous prime is 25866727919909. The next prime is 25866727920049. The reversal of 25866727920000 is 2972766852.

It is a super-2 number, since 2×25866727920000² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 279 ways as a sum of consecutive naturals, for example, 39132719670 + ... + 39132720330.

Almost surely, 2^{25866727920000} is an apocalyptic number.

25866727920000 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 25866727920000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53605864663560).

25866727920000 is an abundant number, since it is smaller than the sum of its proper divisors (81345001407120).

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

25866727920000 is an frugal number, since it uses more digits than its factorization.

25866727920000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785 (or 743 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 54.

The spelling of 25866727920000 in words is "twenty-five trillion, eight hundred sixty-six billion, seven hundred twenty-seven million, nine hundred twenty thousand".