258249612568 has 48 divisors (see below), whose sum is σ = 513184140000. Its totient is φ = 121816602432.

The previous prime is 258249612541. The next prime is 258249612601. The reversal of 258249612568 is 865216942852.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 503158 + ... + 877306.

It is an arithmetic number, because the mean of its divisors is an integer number (10691336250).

Almost surely, 2^258249612568 is an apocalyptic number.

It is an amenable number.

258249612568 is a deficient number, since it is larger than the sum of its proper divisors (254934527432).

258249612568 is a wasteful number, since it uses less digits than its factorization.

258249612568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374432 (or 374409 counting only the distinct ones).

The product of its digits is 16588800, while the sum is 58.

The spelling of 258249612568 in words is "two hundred fifty-eight billion, two hundred forty-nine million, six hundred twelve thousand, five hundred sixty-eight".