25742744670 has 16 divisors (see below), whose sum is σ = 61782587280. Its totient is φ = 6864731904.

The previous prime is 25742744659. The next prime is 25742744701. The reversal of 25742744670 is 7644724752.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 429045715 + ... + 429045774.

It is an arithmetic number, because the mean of its divisors is an integer number (3861411705).

Almost surely, 2^25742744670 is an apocalyptic number.

25742744670 is an abundant number, since it is smaller than the sum of its proper divisors (36039842610).

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

25742744670 is a wasteful number, since it uses less digits than its factorization.

25742744670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858091499.

The product of its (nonzero) digits is 2634240, while the sum is 48.

The spelling of 25742744670 in words is "twenty-five billion, seven hundred forty-two million, seven hundred forty-four thousand, six hundred seventy".