18338505503522 has 16 divisors (see below), whose sum is σ = 28818912844032. Its totient is φ = 8741030546160.

The previous prime is 18338505503519. The next prime is 18338505503533. The reversal of 18338505503522 is 22530550583381.

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, 2207326793 + ... + 2207335100.

It is an arithmetic number, because the mean of its divisors is an integer number (1801182052752).

Almost surely, 2^{18338505503522} is an apocalyptic number.

18338505503522 is a deficient number, since it is larger than the sum of its proper divisors (10480407340510).

18338505503522 is a wasteful number, since it uses less digits than its factorization.

18338505503522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4414661993.

The product of its (nonzero) digits is 4320000, while the sum is 50.

The spelling of 18338505503522 in words is "eighteen trillion, three hundred thirty-eight billion, five hundred five million, five hundred three thousand, five hundred twenty-two".