18372354247783 has 16 divisors (see below), whose sum is σ = 18563610612960. Its totient is φ = 18182106464256.

The previous prime is 18372354247757. The next prime is 18372354247789. The reversal of 18372354247783 is 38774245327381.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18372354247783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18372354247789) 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, 119605833 + ... + 119759341.

It is an arithmetic number, because the mean of its divisors is an integer number (1160225663310).

Almost surely, 2^{18372354247783} is an apocalyptic number.

18372354247783 is a deficient number, since it is larger than the sum of its proper divisors (191256365177).

18372354247783 is a wasteful number, since it uses less digits than its factorization.

18372354247783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156786.

The product of its digits is 189665280, while the sum is 64.

The spelling of 18372354247783 in words is "eighteen trillion, three hundred seventy-two billion, three hundred fifty-four million, two hundred forty-seven thousand, seven hundred eighty-three".