25442880234 has 32 divisors (see below), whose sum is σ = 51243722880. Its totient is φ = 8421371712.

The previous prime is 25442880223. The next prime is 25442880241. The reversal of 25442880234 is 43208824452.

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, 1564107 + ... + 1580289.

It is an arithmetic number, because the mean of its divisors is an integer number (1601366340).

Almost surely, 2^25442880234 is an apocalyptic number.

25442880234 is an abundant number, since it is smaller than the sum of its proper divisors (25800842646).

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

25442880234 is a wasteful number, since it uses less digits than its factorization.

25442880234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18014.

The product of its (nonzero) digits is 491520, while the sum is 42.

The spelling of 25442880234 in words is "twenty-five billion, four hundred forty-two million, eight hundred eighty thousand, two hundred thirty-four".