18243293258 has 8 divisors (see below), whose sum is σ = 27368257440. Its totient is φ = 9120540780.

The previous prime is 18243293227. The next prime is 18243293273. The reversal of 18243293258 is 85239234281.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 532148 + ... + 565391.

It is an arithmetic number, because the mean of its divisors is an integer number (3421032180).

Almost surely, 2^18243293258 is an apocalyptic number.

18243293258 is a deficient number, since it is larger than the sum of its proper divisors (9124964182).

18243293258 is a wasteful number, since it uses less digits than its factorization.

18243293258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105852.

The product of its digits is 829440, while the sum is 47.

The spelling of 18243293258 in words is "eighteen billion, two hundred forty-three million, two hundred ninety-three thousand, two hundred fifty-eight".