22613444431639 has 2 divisors, whose sum is σ = 22613444431640. Its totient is φ = 22613444431638.

The previous prime is 22613444431621. The next prime is 22613444431763. The reversal of 22613444431639 is 93613444431622.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22613444431639 - 2²³ = 22613436043031 is a prime.

It is a super-2 number, since 2×22613444431639² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22613444431609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11306722215819 + 11306722215820.

It is an arithmetic number, because the mean of its divisors is an integer number (11306722215820).

Almost surely, 2^{22613444431639} is an apocalyptic number.

22613444431639 is a deficient number, since it is larger than the sum of its proper divisors (1).

22613444431639 is an equidigital number, since it uses as much as digits as its factorization.

22613444431639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8957952, while the sum is 52.

The spelling of 22613444431639 in words is "twenty-two trillion, six hundred thirteen billion, four hundred forty-four million, four hundred thirty-one thousand, six hundred thirty-nine".