3861823424639 has 2 divisors, whose sum is σ = 3861823424640. Its totient is φ = 3861823424638.

The previous prime is 3861823424633. The next prime is 3861823424663. The reversal of 3861823424639 is 9364243281683.

3861823424639 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3861823424639 - 2²⁰ = 3861822376063 is a prime.

It is a super-2 number, since 2×3861823424639² (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 (3861823424633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1930911712319 + 1930911712320.

It is an arithmetic number, because the mean of its divisors is an integer number (1930911712320).

Almost surely, 2^{3861823424639} is an apocalyptic number.

3861823424639 is a deficient number, since it is larger than the sum of its proper divisors (1).

3861823424639 is an equidigital number, since it uses as much as digits as its factorization.

3861823424639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35831808, while the sum is 59.

The spelling of 3861823424639 in words is "three trillion, eight hundred sixty-one billion, eight hundred twenty-three million, four hundred twenty-four thousand, six hundred thirty-nine".