18258572311 has 16 divisors (see below), whose sum is σ = 20920301568. Its totient is φ = 15610240800.

The previous prime is 18258572309. The next prime is 18258572327. The reversal of 18258572311 is 11327585281.

It is not a de Polignac number, because 18258572311 - 2¹ = 18258572309 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 (18258572711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7045626 + ... + 7048216.

It is an arithmetic number, because the mean of its divisors is an integer number (1307518848).

Almost surely, 2^18258572311 is an apocalyptic number.

18258572311 is a deficient number, since it is larger than the sum of its proper divisors (2661729257).

18258572311 is a wasteful number, since it uses less digits than its factorization.

18258572311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4782.

The product of its digits is 134400, while the sum is 43.

The spelling of 18258572311 in words is "eighteen billion, two hundred fifty-eight million, five hundred seventy-two thousand, three hundred eleven".