338907707416909 has 2 divisors, whose sum is σ = 338907707416910. Its totient is φ = 338907707416908.

The previous prime is 338907707416891. The next prime is 338907707416933. The reversal of 338907707416909 is 909614707709833.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 331903612841284 + 7004094575625 = 18218222^2 + 2646525^2 .

It is an emirp because it is prime and its reverse (909614707709833) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 338907707416909 - 2²⁹ = 338907170545997 is a prime.

It is a super-2 number, since 2×338907707416909² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (338907707411909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169453853708454 + 169453853708455.

It is an arithmetic number, because the mean of its divisors is an integer number (169453853708455).

Almost surely, 2^{338907707416909} is an apocalyptic number.

It is an amenable number.

338907707416909 is a deficient number, since it is larger than the sum of its proper divisors (1).

338907707416909 is an equidigital number, since it uses as much as digits as its factorization.

338907707416909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432081216, while the sum is 73.

The spelling of 338907707416909 in words is "three hundred thirty-eight trillion, nine hundred seven billion, seven hundred seven million, four hundred sixteen thousand, nine hundred nine".