258518426111 has 4 divisors (see below), whose sum is σ = 282020101224. Its totient is φ = 235016751000.

The previous prime is 258518426081. The next prime is 258518426197. The reversal of 258518426111 is 111624815852.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-258518426111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258518416111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11750837540 + ... + 11750837561.

It is an arithmetic number, because the mean of its divisors is an integer number (70505025306).

Almost surely, 2^258518426111 is an apocalyptic number.

258518426111 is a deficient number, since it is larger than the sum of its proper divisors (23501675113).

258518426111 is a wasteful number, since it uses less digits than its factorization.

258518426111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23501675112.

The product of its digits is 153600, while the sum is 44.

The spelling of 258518426111 in words is "two hundred fifty-eight billion, five hundred eighteen million, four hundred twenty-six thousand, one hundred eleven".