3831379348639 has 2 divisors, whose sum is σ = 3831379348640. Its totient is φ = 3831379348638.

The previous prime is 3831379348591. The next prime is 3831379348721. The reversal of 3831379348639 is 9368439731383.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3831379348639 - 2¹³ = 3831379340447 is a prime.

It is a super-2 number, since 2×3831379348639² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3831379748639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1915689674319 + 1915689674320.

It is an arithmetic number, because the mean of its divisors is an integer number (1915689674320).

Almost surely, 2^{3831379348639} is an apocalyptic number.

3831379348639 is a deficient number, since it is larger than the sum of its proper divisors (1).

3831379348639 is an equidigital number, since it uses as much as digits as its factorization.

3831379348639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 211631616, while the sum is 67.

The spelling of 3831379348639 in words is "three trillion, eight hundred thirty-one billion, three hundred seventy-nine million, three hundred forty-eight thousand, six hundred thirty-nine".