18202044337 has 12 divisors (see below), whose sum is σ = 18485739216. Its totient is φ = 17920096320.

The previous prime is 18202044319. The next prime is 18202044349. The reversal of 18202044337 is 73344020281.

It is not a de Polignac number, because 18202044337 - 2¹⁹ = 18201520049 is a prime.

It is a super-2 number, since 2×18202044337² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18202047337) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 9425262 + ... + 9427192.

It is an arithmetic number, because the mean of its divisors is an integer number (1540478268).

Almost surely, 2^18202044337 is an apocalyptic number.

It is an amenable number.

18202044337 is a deficient number, since it is larger than the sum of its proper divisors (283694879).

18202044337 is an frugal number, since it uses more digits than its factorization.

18202044337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2688 (or 2351 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 34.

The spelling of 18202044337 in words is "eighteen billion, two hundred two million, forty-four thousand, three hundred thirty-seven".