18364727794 has 32 divisors (see below), whose sum is σ = 33111161856. Its totient is φ = 7472986560.

The previous prime is 18364727753. The next prime is 18364727861. The reversal of 18364727794 is 49772746381.

It is a super-2 number, since 2×18364727794² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 376197 + ... + 422200.

It is an arithmetic number, because the mean of its divisors is an integer number (1034723808).

Almost surely, 2^18364727794 is an apocalyptic number.

18364727794 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18364727794 is a deficient number, since it is larger than the sum of its proper divisors (14746434062).

18364727794 is a wasteful number, since it uses less digits than its factorization.

18364727794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798490.

The product of its digits is 14224896, while the sum is 58.

The spelling of 18364727794 in words is "eighteen billion, three hundred sixty-four million, seven hundred twenty-seven thousand, seven hundred ninety-four".