338604118637 has 2 divisors, whose sum is σ = 338604118638. Its totient is φ = 338604118636.

The previous prime is 338604118583. The next prime is 338604118649. The reversal of 338604118637 is 736811406833.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 334377688516 + 4226430121 = 578254^2 + 65011^2 .

It is an emirp because it is prime and its reverse (736811406833) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 338604118637 - 2¹⁰ = 338604117613 is a prime.

It is a super-2 number, since 2×338604118637² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (338604118037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169302059318 + 169302059319.

It is an arithmetic number, because the mean of its divisors is an integer number (169302059319).

Almost surely, 2^338604118637 is an apocalyptic number.

It is an amenable number.

338604118637 is a deficient number, since it is larger than the sum of its proper divisors (1).

338604118637 is an equidigital number, since it uses as much as digits as its factorization.

338604118637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1741824, while the sum is 50.

The spelling of 338604118637 in words is "three hundred thirty-eight billion, six hundred four million, one hundred eighteen thousand, six hundred thirty-seven".