18743054227199 has 16 divisors (see below), whose sum is σ = 19598412697920. Its totient is φ = 17901806576640.

The previous prime is 18743054227153. The next prime is 18743054227259. The reversal of 18743054227199 is 99172245034781.

It is a cyclic number.

It is not a de Polignac number, because 18743054227199 - 2⁸ = 18743054226943 is a prime.

It is a super-2 number, since 2×18743054227199² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18743054227129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4466582 + ... + 7578684.

It is an arithmetic number, because the mean of its divisors is an integer number (1224900793620).

Almost surely, 2^{18743054227199} is an apocalyptic number.

18743054227199 is a deficient number, since it is larger than the sum of its proper divisors (855358470721).

18743054227199 is a wasteful number, since it uses less digits than its factorization.

18743054227199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3114370.

The product of its (nonzero) digits is 30481920, while the sum is 62.

The spelling of 18743054227199 in words is "eighteen trillion, seven hundred forty-three billion, fifty-four million, two hundred twenty-seven thousand, one hundred ninety-nine".