25845839173 has 16 divisors (see below), whose sum is σ = 32228816256. Its totient is φ = 20136219840.

The previous prime is 25845839167. The next prime is 25845839183. The reversal of 25845839173 is 37193854852.

It is not a de Polignac number, because 25845839173 - 2¹³ = 25845830981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25845839153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 493515 + ... + 543367.

It is an arithmetic number, because the mean of its divisors is an integer number (2014301016).

Almost surely, 2^25845839173 is an apocalyptic number.

It is an amenable number.

25845839173 is a deficient number, since it is larger than the sum of its proper divisors (6382977083).

25845839173 is a wasteful number, since it uses less digits than its factorization.

25845839173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56604.

The product of its digits is 7257600, while the sum is 55.

The spelling of 25845839173 in words is "twenty-five billion, eight hundred forty-five million, eight hundred thirty-nine thousand, one hundred seventy-three".