338604118649 has 2 divisors, whose sum is σ = 338604118650. Its totient is φ = 338604118648.

The previous prime is 338604118637. The next prime is 338604118709. The reversal of 338604118649 is 946811406833.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 200205238249 + 138398880400 = 447443^2 + 372020^2 .

It is a cyclic number.

It is not a de Polignac number, because 338604118649 - 2²⁰ = 338603070073 is a prime.

It is a super-2 number, since 2×338604118649² (a number of 24 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 338604118649.

It is not a weakly prime, because it can be changed into another prime (338604118249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169302059324 + 169302059325.

It is an arithmetic number, because the mean of its divisors is an integer number (169302059325).

Almost surely, 2^338604118649 is an apocalyptic number.

It is an amenable number.

338604118649 is a deficient number, since it is larger than the sum of its proper divisors (1).

338604118649 is an equidigital number, since it uses as much as digits as its factorization.

338604118649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2985984, while the sum is 53.

The spelling of 338604118649 in words is "three hundred thirty-eight billion, six hundred four million, one hundred eighteen thousand, six hundred forty-nine".