18307336343 has 2 divisors, whose sum is σ = 18307336344. Its totient is φ = 18307336342.

The previous prime is 18307336319. The next prime is 18307336351. The reversal of 18307336343 is 34363370381.

It is a strong prime.

It is an emirp because it is prime and its reverse (34363370381) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18307336343 - 2⁶ = 18307336279 is a prime.

It is a super-2 number, since 2×18307336343² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18307336343.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18307339343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9153668171 + 9153668172.

It is an arithmetic number, because the mean of its divisors is an integer number (9153668172).

Almost surely, 2^18307336343 is an apocalyptic number.

18307336343 is a deficient number, since it is larger than the sum of its proper divisors (1).

18307336343 is an equidigital number, since it uses as much as digits as its factorization.

18307336343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 41.

The spelling of 18307336343 in words is "eighteen billion, three hundred seven million, three hundred thirty-six thousand, three hundred forty-three".