25769057428 has 24 divisors (see below), whose sum is σ = 45853258752. Its totient is φ = 12669922944.

The previous prime is 25769057417. The next prime is 25769057437. The reversal of 25769057428 is 82475096752.

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, 167050 + ... + 281857.

It is an arithmetic number, because the mean of its divisors is an integer number (1910552448).

Almost surely, 2^25769057428 is an apocalyptic number.

It is an amenable number.

25769057428 is a deficient number, since it is larger than the sum of its proper divisors (20084201324).

25769057428 is a wasteful number, since it uses less digits than its factorization.

25769057428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449151 (or 449149 counting only the distinct ones).

The product of its (nonzero) digits is 8467200, while the sum is 55.

The spelling of 25769057428 in words is "twenty-five billion, seven hundred sixty-nine million, fifty-seven thousand, four hundred twenty-eight".