18386722060 has 24 divisors (see below), whose sum is σ = 44128133280. Its totient is φ = 6304018944.

The previous prime is 18386722027. The next prime is 18386722069. The reversal of 18386722060 is 6022768381.

It is a super-2 number, since 2×18386722060² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18386721998 and 18386722016.

It is not an unprimeable number, because it can be changed into a prime (18386722069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65666725 + ... + 65667004.

It is an arithmetic number, because the mean of its divisors is an integer number (1838672220).

Almost surely, 2^18386722060 is an apocalyptic number.

18386722060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18386722060 is an abundant number, since it is smaller than the sum of its proper divisors (25741411220).

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

18386722060 is a wasteful number, since it uses less digits than its factorization.

18386722060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131333745 (or 131333743 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 43.

The spelling of 18386722060 in words is "eighteen billion, three hundred eighty-six million, seven hundred twenty-two thousand, sixty".