258601984685 has 24 divisors (see below), whose sum is σ = 341356259328. Its totient is φ = 187931858400.

The previous prime is 258601984679. The next prime is 258601984691. The reversal of 258601984685 is 586489106852.

258601984685 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (258601984679) and next prime (258601984691).

It is not a de Polignac number, because 258601984685 - 2²⁶ = 258534875821 is a prime.

It is a Duffinian number.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 641780 + ... + 963890.

It is an arithmetic number, because the mean of its divisors is an integer number (14223177472).

Almost surely, 2^258601984685 is an apocalyptic number.

It is an amenable number.

258601984685 is a deficient number, since it is larger than the sum of its proper divisors (82754274643).

258601984685 is a wasteful number, since it uses less digits than its factorization.

258601984685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323465 (or 323454 counting only the distinct ones).

The product of its (nonzero) digits is 33177600, while the sum is 62.

The spelling of 258601984685 in words is "two hundred fifty-eight billion, six hundred one million, nine hundred eighty-four thousand, six hundred eighty-five".