22162775749 has 2 divisors, whose sum is σ = 22162775750. Its totient is φ = 22162775748.

The previous prime is 22162775717. The next prime is 22162775759. The reversal of 22162775749 is 94757726122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16729611649 + 5433164100 = 129343^2 + 73710^2 .

It is a cyclic number.

It is not a de Polignac number, because 22162775749 - 2⁵ = 22162775717 is a prime.

It is a super-2 number, since 2×22162775749² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22162775696 and 22162775705.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22162775759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11081387874 + 11081387875.

It is an arithmetic number, because the mean of its divisors is an integer number (11081387875).

Almost surely, 2^22162775749 is an apocalyptic number.

It is an amenable number.

22162775749 is a deficient number, since it is larger than the sum of its proper divisors (1).

22162775749 is an equidigital number, since it uses as much as digits as its factorization.

22162775749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2963520, while the sum is 52.

The spelling of 22162775749 in words is "twenty-two billion, one hundred sixty-two million, seven hundred seventy-five thousand, seven hundred forty-nine".