3831375881 has 2 divisors, whose sum is σ = 3831375882. Its totient is φ = 3831375880.

The previous prime is 3831375851. The next prime is 3831375893. The reversal of 3831375881 is 1885731383.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3826535881 + 4840000 = 61859^2 + 2200^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3831375881 is a prime.

It is a super-2 number, since 2×3831375881² = 29358882283017052322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3831375851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1915687940 + 1915687941.

It is an arithmetic number, because the mean of its divisors is an integer number (1915687941).

Almost surely, 2^3831375881 is an apocalyptic number.

It is an amenable number.

3831375881 is a deficient number, since it is larger than the sum of its proper divisors (1).

3831375881 is an equidigital number, since it uses as much as digits as its factorization.

3831375881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 483840, while the sum is 47.

The square root of 3831375881 is about 61898.1088644879. The cubic root of 3831375881 is about 1564.7738762189.

The spelling of 3831375881 in words is "three billion, eight hundred thirty-one million, three hundred seventy-five thousand, eight hundred eighty-one".