25790233578 has 16 divisors (see below), whose sum is σ = 52677924480. Its totient is φ = 8413834976.

The previous prime is 25790233559. The next prime is 25790233619. The reversal of 25790233578 is 87533209752.

It is a happy number.

It is a super-2 number, since 2×25790233578² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25790233578.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45727083 + ... + 45727646.

It is an arithmetic number, because the mean of its divisors is an integer number (3292370280).

Almost surely, 2^25790233578 is an apocalyptic number.

25790233578 is an abundant number, since it is smaller than the sum of its proper divisors (26887690902).

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

25790233578 is a wasteful number, since it uses less digits than its factorization.

25790233578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91454781.

The product of its (nonzero) digits is 3175200, while the sum is 51.

The spelling of 25790233578 in words is "twenty-five billion, seven hundred ninety million, two hundred thirty-three thousand, five hundred seventy-eight".