13818470377 has 2 divisors, whose sum is σ = 13818470378. Its totient is φ = 13818470376.

The previous prime is 13818470371. The next prime is 13818470431. The reversal of 13818470377 is 77307481831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11215021801 + 2603448576 = 105901^2 + 51024^2 .

It is an emirp because it is prime and its reverse (77307481831) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13818470377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13818470377.

It is not a weakly prime, because it can be changed into another prime (13818470371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6909235188 + 6909235189.

It is an arithmetic number, because the mean of its divisors is an integer number (6909235189).

Almost surely, 2^13818470377 is an apocalyptic number.

It is an amenable number.

13818470377 is a deficient number, since it is larger than the sum of its proper divisors (1).

13818470377 is an equidigital number, since it uses as much as digits as its factorization.

13818470377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 790272, while the sum is 49.

The spelling of 13818470377 in words is "thirteen billion, eight hundred eighteen million, four hundred seventy thousand, three hundred seventy-seven".