18464862216 has 16 divisors (see below), whose sum is σ = 46162155600. Its totient is φ = 6154954064.

The previous prime is 18464862211. The next prime is 18464862259. The reversal of 18464862216 is 61226846481.

It is a super-2 number, since 2×18464862216² (a number of 21 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (18464862211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 384684606 + ... + 384684653.

It is an arithmetic number, because the mean of its divisors is an integer number (2885134725).

Almost surely, 2^18464862216 is an apocalyptic number.

It is an amenable number.

18464862216 is an abundant number, since it is smaller than the sum of its proper divisors (27697293384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18464862216 is a wasteful number, since it uses less digits than its factorization.

18464862216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769369268 (or 769369264 counting only the distinct ones).

The product of its digits is 884736, while the sum is 48.

The spelling of 18464862216 in words is "eighteen billion, four hundred sixty-four million, eight hundred sixty-two thousand, two hundred sixteen".