25987262286 has 16 divisors (see below), whose sum is σ = 51976324224. Its totient is φ = 8662120824.

The previous prime is 25987262263. The next prime is 25987262363. The reversal of 25987262286 is 68226278952.

It is a super-2 number, since 2×25987262286² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178821 + ... + 289743.

It is an arithmetic number, because the mean of its divisors is an integer number (3248520264).

Almost surely, 2^25987262286 is an apocalyptic number.

25987262286 is an abundant number, since it is smaller than the sum of its proper divisors (25989061938).

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

25987262286 is a wasteful number, since it uses less digits than its factorization.

25987262286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149975.

The product of its digits is 11612160, while the sum is 57.

The spelling of 25987262286 in words is "twenty-five billion, nine hundred eighty-seven million, two hundred sixty-two thousand, two hundred eighty-six".