18202044319 has 2 divisors, whose sum is σ = 18202044320. Its totient is φ = 18202044318.

The previous prime is 18202044299. The next prime is 18202044349. The reversal of 18202044319 is 91344020281.

It is a weak prime.

It is an emirp because it is prime and its reverse (91344020281) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18202044319 - 2⁷ = 18202044191 is a prime.

It is a super-2 number, since 2×18202044319² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18202044349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9101022159 + 9101022160.

It is an arithmetic number, because the mean of its divisors is an integer number (9101022160).

Almost surely, 2^18202044319 is an apocalyptic number.

18202044319 is a deficient number, since it is larger than the sum of its proper divisors (1).

18202044319 is an equidigital number, since it uses as much as digits as its factorization.

18202044319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 34.

The spelling of 18202044319 in words is "eighteen billion, two hundred two million, forty-four thousand, three hundred nineteen".