25984563234 has 128 divisors (see below), whose sum is σ = 62479226880. Its totient is φ = 7051359744.

The previous prime is 25984563217. The next prime is 25984563247. The reversal of 25984563234 is 43236548952.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8797902 + ... + 8800854.

It is an arithmetic number, because the mean of its divisors is an integer number (488118960).

Almost surely, 2^25984563234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25984563234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31239613440).

25984563234 is an abundant number, since it is smaller than the sum of its proper divisors (36494663646).

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

25984563234 is a wasteful number, since it uses less digits than its factorization.

25984563234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3144.

The product of its digits is 6220800, while the sum is 51.

The spelling of 25984563234 in words is "twenty-five billion, nine hundred eighty-four million, five hundred sixty-three thousand, two hundred thirty-four".