18568238234 has 16 divisors (see below), whose sum is σ = 34279824768. Its totient is φ = 7345676592.

The previous prime is 18568238209. The next prime is 18568238279. The reversal of 18568238234 is 43283286581.

It is a super-2 number, since 2×18568238234² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51011462 + ... + 51011825.

It is an arithmetic number, because the mean of its divisors is an integer number (2142489048).

Almost surely, 2^18568238234 is an apocalyptic number.

18568238234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18568238234 is a deficient number, since it is larger than the sum of its proper divisors (15711586534).

18568238234 is a wasteful number, since it uses less digits than its factorization.

18568238234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102023309.

The product of its digits is 2211840, while the sum is 50.

The spelling of 18568238234 in words is "eighteen billion, five hundred sixty-eight million, two hundred thirty-eight thousand, two hundred thirty-four".