22728773677 has 2 divisors, whose sum is σ = 22728773678. Its totient is φ = 22728773676.

The previous prime is 22728773651. The next prime is 22728773687. The reversal of 22728773677 is 77637782722.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22446332041 + 282441636 = 149821^2 + 16806^2 .

It is a cyclic number.

It is not a de Polignac number, because 22728773677 - 2¹¹ = 22728771629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22728773687) 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, 11364386838 + 11364386839.

It is an arithmetic number, because the mean of its divisors is an integer number (11364386839).

Almost surely, 2^22728773677 is an apocalyptic number.

It is an amenable number.

22728773677 is a deficient number, since it is larger than the sum of its proper divisors (1).

22728773677 is an equidigital number, since it uses as much as digits as its factorization.

22728773677 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19361664, while the sum is 58.

The spelling of 22728773677 in words is "twenty-two billion, seven hundred twenty-eight million, seven hundred seventy-three thousand, six hundred seventy-seven".