25867860000 has 240 divisors, whose sum is σ = 86666557824. Its totient is φ = 6750592000.

The previous prime is 25867859951. The next prime is 25867860001. The reversal of 25867860000 is 6876852.

It is a tau number, because it is divible by the number of its divisors (240).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25867860001) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2815414 + ... + 2824586.

Almost surely, 2^25867860000 is an apocalyptic number.

25867860000 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 25867860000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43333278912).

25867860000 is an abundant number, since it is smaller than the sum of its proper divisors (60798697824).

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

25867860000 is an equidigital number, since it uses as much as digits as its factorization.

25867860000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9253 (or 9230 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The spelling of 25867860000 in words is "twenty-five billion, eight hundred sixty-seven million, eight hundred sixty thousand".