18680214432038 has 4 divisors (see below), whose sum is σ = 28020321648060. Its totient is φ = 9340107216018.

The previous prime is 18680214431993. The next prime is 18680214432041. The reversal of 18680214432038 is 83023441208681.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×18680214432038² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4670053608008 + ... + 4670053608011.

It is an arithmetic number, because the mean of its divisors is an integer number (7005080412015).

Almost surely, 2^{18680214432038} is an apocalyptic number.

18680214432038 is a deficient number, since it is larger than the sum of its proper divisors (9340107216022).

18680214432038 is an equidigital number, since it uses as much as digits as its factorization.

18680214432038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9340107216021.

The product of its (nonzero) digits is 1769472, while the sum is 50.

The spelling of 18680214432038 in words is "eighteen trillion, six hundred eighty billion, two hundred fourteen million, four hundred thirty-two thousand, thirty-eight".