25868109870720 has 2688 divisors, whose sum is σ = 109289101478400. Its totient is φ = 5827326935040.

The previous prime is 25868109870677. The next prime is 25868109870731. The reversal of 25868109870720 is 2707890186852.

It is a super-2 number, since 2×25868109870720² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 335 ways as a sum of consecutive naturals, for example, 46441848682 + ... + 46441849238.

Almost surely, 2^{25868109870720} is an apocalyptic number.

25868109870720 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 25868109870720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54644550739200).

25868109870720 is an abundant number, since it is smaller than the sum of its proper divisors (83420991607680).

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

25868109870720 is a wasteful number, since it uses less digits than its factorization.

25868109870720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670 (or 630 counting only the distinct ones).

The product of its (nonzero) digits is 27095040, while the sum is 63.

The spelling of 25868109870720 in words is "twenty-five trillion, eight hundred sixty-eight billion, one hundred nine million, eight hundred seventy thousand, seven hundred twenty".