22142436677 has 2 divisors, whose sum is σ = 22142436678. Its totient is φ = 22142436676.

The previous prime is 22142436623. The next prime is 22142436713. The reversal of 22142436677 is 77663424122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12554306116 + 9588130561 = 112046^2 + 97919^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22142436677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22142435677) 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, 11071218338 + 11071218339.

It is an arithmetic number, because the mean of its divisors is an integer number (11071218339).

Almost surely, 2^22142436677 is an apocalyptic number.

It is an amenable number.

22142436677 is a deficient number, since it is larger than the sum of its proper divisors (1).

22142436677 is an equidigital number, since it uses as much as digits as its factorization.

22142436677 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 677376, while the sum is 44.

The spelling of 22142436677 in words is "twenty-two billion, one hundred forty-two million, four hundred thirty-six thousand, six hundred seventy-seven".