258056728387 has 8 divisors (see below), whose sum is σ = 275692971200. Its totient is φ = 240825916584.

The previous prime is 258056728381. The next prime is 258056728471. The reversal of 258056728387 is 783827650852.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 258056728387 - 2¹¹ = 258056726339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (258056728381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101356437 + ... + 101358982.

It is an arithmetic number, because the mean of its divisors is an integer number (34461621400).

Almost surely, 2^258056728387 is an apocalyptic number.

258056728387 is a deficient number, since it is larger than the sum of its proper divisors (17636242813).

258056728387 is a wasteful number, since it uses less digits than its factorization.

258056728387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202715505.

The product of its (nonzero) digits is 45158400, while the sum is 61.

The spelling of 258056728387 in words is "two hundred fifty-eight billion, fifty-six million, seven hundred twenty-eight thousand, three hundred eighty-seven".