25828367172 has 24 divisors (see below), whose sum is σ = 63811260576. Its totient is φ = 8103017088.

The previous prime is 25828367167. The next prime is 25828367207. The reversal of 25828367172 is 27176382852.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63304618 + ... + 63305025.

It is an arithmetic number, because the mean of its divisors is an integer number (2658802524).

Almost surely, 2^25828367172 is an apocalyptic number.

It is an amenable number.

25828367172 is an abundant number, since it is smaller than the sum of its proper divisors (37982893404).

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

25828367172 is a wasteful number, since it uses less digits than its factorization.

25828367172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126609667 (or 126609665 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 51.

The spelling of 25828367172 in words is "twenty-five billion, eight hundred twenty-eight million, three hundred sixty-seven thousand, one hundred seventy-two".