2631222241639 has 2 divisors, whose sum is σ = 2631222241640. Its totient is φ = 2631222241638.

The previous prime is 2631222241607. The next prime is 2631222241693. The reversal of 2631222241639 is 9361422221362.

Together with next prime (2631222241693) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2631222241639 - 2⁵ = 2631222241607 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2631222241595 and 2631222241604.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2631222241339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1315611120819 + 1315611120820.

It is an arithmetic number, because the mean of its divisors is an integer number (1315611120820).

Almost surely, 2^{2631222241639} is an apocalyptic number.

2631222241639 is a deficient number, since it is larger than the sum of its proper divisors (1).

2631222241639 is an equidigital number, since it uses as much as digits as its factorization.

2631222241639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 43.

The spelling of 2631222241639 in words is "two trillion, six hundred thirty-one billion, two hundred twenty-two million, two hundred forty-one thousand, six hundred thirty-nine".