25866424104 has 32 divisors (see below), whose sum is σ = 65238333120. Its totient is φ = 8545838336.

The previous prime is 25866424081. The next prime is 25866424141. The reversal of 25866424104 is 40142466852.

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, 4766172 + ... + 4771595.

It is an arithmetic number, because the mean of its divisors is an integer number (2038697910).

Almost surely, 2^25866424104 is an apocalyptic number.

25866424104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

25866424104 is an abundant number, since it is smaller than the sum of its proper divisors (39371909016).

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

25866424104 is a wasteful number, since it uses less digits than its factorization.

25866424104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9537889 (or 9537885 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 42.

The spelling of 25866424104 in words is "twenty-five billion, eight hundred sixty-six million, four hundred twenty-four thousand, one hundred four".