3838131931 has 2 divisors, whose sum is σ = 3838131932. Its totient is φ = 3838131930.

The previous prime is 3838131901. The next prime is 3838131937. The reversal of 3838131931 is 1391318383.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3838131931 - 2²¹ = 3836034779 is a prime.

It is a super-2 number, since 2×3838131931² = 29462513439523577522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3838131937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1919065965 + 1919065966.

It is an arithmetic number, because the mean of its divisors is an integer number (1919065966).

Almost surely, 2^3838131931 is an apocalyptic number.

3838131931 is a deficient number, since it is larger than the sum of its proper divisors (1).

3838131931 is an equidigital number, since it uses as much as digits as its factorization.

3838131931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 40.

The square root of 3838131931 is about 61952.6587887881. The cubic root of 3838131931 is about 1565.6930832347.

The spelling of 3838131931 in words is "three billion, eight hundred thirty-eight million, one hundred thirty-one thousand, nine hundred thirty-one".