338513864181 has 16 divisors (see below), whose sum is σ = 454059176448. Its totient is φ = 224325385200.

The previous prime is 338513864177. The next prime is 338513864191. The reversal of 338513864181 is 181468315833.

It is not a de Polignac number, because 338513864181 - 2² = 338513864177 is a prime.

It is a super-2 number, since 2×338513864181² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (338513864141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35826 + ... + 823596.

It is an arithmetic number, because the mean of its divisors is an integer number (28378698528).

Almost surely, 2^338513864181 is an apocalyptic number.

It is an amenable number.

338513864181 is a deficient number, since it is larger than the sum of its proper divisors (115545312267).

338513864181 is a wasteful number, since it uses less digits than its factorization.

338513864181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 788632.

The product of its digits is 1658880, while the sum is 51.

The spelling of 338513864181 in words is "three hundred thirty-eight billion, five hundred thirteen million, eight hundred sixty-four thousand, one hundred eighty-one".