18784223508754 has 16 divisors (see below), whose sum is σ = 32355600302880. Its totient is φ = 8088900075360.

The previous prime is 18784223508671. The next prime is 18784223508763. The reversal of 18784223508754 is 45780532248781.

It is a super-2 number, since 2×18784223508754² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22469166459 + ... + 22469167294.

It is an arithmetic number, because the mean of its divisors is an integer number (2022225018930).

Almost surely, 2^{18784223508754} is an apocalyptic number.

18784223508754 is a deficient number, since it is larger than the sum of its proper divisors (13571376794126).

18784223508754 is a wasteful number, since it uses less digits than its factorization.

18784223508754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44938333785.

The product of its (nonzero) digits is 120422400, while the sum is 64.

The spelling of 18784223508754 in words is "eighteen trillion, seven hundred eighty-four billion, two hundred twenty-three million, five hundred eight thousand, seven hundred fifty-four".