18377033614913 has 2 divisors, whose sum is σ = 18377033614914. Its totient is φ = 18377033614912.

The previous prime is 18377033614909. The next prime is 18377033614939. The reversal of 18377033614913 is 31941633077381.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15874869611584 + 2502164003329 = 3984328^2 + 1581823^2 .

It is an emirp because it is prime and its reverse (31941633077381) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18377033614913 - 2² = 18377033614909 is a prime.

It is not a weakly prime, because it can be changed into another prime (18377033614963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9188516807456 + 9188516807457.

It is an arithmetic number, because the mean of its divisors is an integer number (9188516807457).

Almost surely, 2^{18377033614913} is an apocalyptic number.

It is an amenable number.

18377033614913 is a deficient number, since it is larger than the sum of its proper divisors (1).

18377033614913 is an equidigital number, since it uses as much as digits as its factorization.

18377033614913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6858432, while the sum is 56.

The spelling of 18377033614913 in words is "eighteen trillion, three hundred seventy-seven billion, thirty-three million, six hundred fourteen thousand, nine hundred thirteen".