338731518423481 has 16 divisors (see below), whose sum is σ = 351502023674368. Its totient is φ = 326080258329600.

The previous prime is 338731518423449. The next prime is 338731518423497. The reversal of 338731518423481 is 184324815137833.

It is a cyclic number.

It is not a de Polignac number, because 338731518423481 - 2⁵ = 338731518423449 is a prime.

It is a super-2 number, since 2×338731518423481² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (338731518423421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28396110 + ... + 38520151.

It is an arithmetic number, because the mean of its divisors is an integer number (21968876479648).

Almost surely, 2^{338731518423481} is an apocalyptic number.

338731518423481 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

338731518423481 is a deficient number, since it is larger than the sum of its proper divisors (12770505250887).

338731518423481 is a wasteful number, since it uses less digits than its factorization.

338731518423481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66917152.

The product of its digits is 46448640, while the sum is 61.

The spelling of 338731518423481 in words is "three hundred thirty-eight trillion, seven hundred thirty-one billion, five hundred eighteen million, four hundred twenty-three thousand, four hundred eighty-one".