25982400234 has 32 divisors (see below), whose sum is σ = 60600355200. Its totient is φ = 7423542336.

The previous prime is 25982400181. The next prime is 25982400247. The reversal of 25982400234 is 43200428952.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25982400192 and 25982400201.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6310479 + ... + 6314594.

It is an arithmetic number, because the mean of its divisors is an integer number (1893761100).

Almost surely, 2^25982400234 is an apocalyptic number.

25982400234 is an abundant number, since it is smaller than the sum of its proper divisors (34617954966).

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

25982400234 is a wasteful number, since it uses less digits than its factorization.

25982400234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12625099 (or 12625085 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 39.

The spelling of 25982400234 in words is "twenty-five billion, nine hundred eighty-two million, four hundred thousand, two hundred thirty-four".