338739915538 has 8 divisors (see below), whose sum is σ = 508113281340. Its totient is φ = 169368821760.

The previous prime is 338739915497. The next prime is 338739915539. The reversal of 338739915538 is 835519937833.

It can be written as a sum of positive squares in 2 ways, for example, as 272915342569 + 65824572969 = 522413^2 + 256563^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×338739915538² (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 338739915538.

It is not an unprimeable number, because it can be changed into a prime (338739915539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126703 + ... + 832786.

Almost surely, 2^338739915538 is an apocalyptic number.

338739915538 is a deficient number, since it is larger than the sum of its proper divisors (169373365802).

338739915538 is a wasteful number, since it uses less digits than its factorization.

338739915538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136012.

The product of its digits is 73483200, while the sum is 64.

The spelling of 338739915538 in words is "three hundred thirty-eight billion, seven hundred thirty-nine million, nine hundred fifteen thousand, five hundred thirty-eight".