18227339463 has 64 divisors (see below), whose sum is σ = 27387072000. Its totient is φ = 10728689664.

The previous prime is 18227339453. The next prime is 18227339477. The reversal of 18227339463 is 36493372281.

It is a de Polignac number, because none of the positive numbers 2^k-18227339463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18227339443) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7765056 + ... + 7767402.

It is an arithmetic number, because the mean of its divisors is an integer number (427923000).

Almost surely, 2^18227339463 is an apocalyptic number.

18227339463 is a deficient number, since it is larger than the sum of its proper divisors (9159732537).

18227339463 is a wasteful number, since it uses less digits than its factorization.

18227339463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2544.

The product of its digits is 1306368, while the sum is 48.

The spelling of 18227339463 in words is "eighteen billion, two hundred twenty-seven million, three hundred thirty-nine thousand, four hundred sixty-three".