338865431984931 has 32 divisors (see below), whose sum is σ = 476240891385600. Its totient is φ = 213732283944960.

The previous prime is 338865431984929. The next prime is 338865431984987. The reversal of 338865431984931 is 139489134568833.

It is not a de Polignac number, because 338865431984931 - 2¹ = 338865431984929 is a prime.

It is a super-2 number, since 2×338865431984931² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (338865431984731) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 174428635 + ... + 176360651.

It is an arithmetic number, because the mean of its divisors is an integer number (14882527855800).

Almost surely, 2^{338865431984931} is an apocalyptic number.

338865431984931 is a deficient number, since it is larger than the sum of its proper divisors (137375459400669).

338865431984931 is a wasteful number, since it uses less digits than its factorization.

338865431984931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1936179.

The product of its digits is 1612431360, while the sum is 75.

The spelling of 338865431984931 in words is "three hundred thirty-eight trillion, eight hundred sixty-five billion, four hundred thirty-one million, nine hundred eighty-four thousand, nine hundred thirty-one".