18460365860 has 24 divisors (see below), whose sum is σ = 40103554680. Its totient is φ = 7129520384.

The previous prime is 18460365851. The next prime is 18460365887. The reversal of 18460365860 is 6856306481.

It can be written as a sum of positive squares in 4 ways, for example, as 114746944 + 18345618916 = 10712^2 + 135446^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 15913529 + ... + 15914688.

It is an arithmetic number, because the mean of its divisors is an integer number (1670981445).

Almost surely, 2^18460365860 is an apocalyptic number.

18460365860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18460365860 is an abundant number, since it is smaller than the sum of its proper divisors (21643188820).

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

18460365860 is a wasteful number, since it uses less digits than its factorization.

18460365860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31828255 (or 31828253 counting only the distinct ones).

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

The spelling of 18460365860 in words is "eighteen billion, four hundred sixty million, three hundred sixty-five thousand, eight hundred sixty".