22761091669 has 4 divisors (see below), whose sum is σ = 22763554444. Its totient is φ = 22758628896.

The previous prime is 22761091651. The next prime is 22761091673. The reversal of 22761091669 is 96619016722.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13308391044 + 9452700625 = 115362^2 + 97225^2 .

It is a cyclic number.

It is not a de Polignac number, because 22761091669 - 2²⁵ = 22727537237 is a prime.

It is a super-2 number, since 2×22761091669² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22761091609) 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 in 3 ways as a sum of consecutive naturals, for example, 1217472 + ... + 1236025.

It is an arithmetic number, because the mean of its divisors is an integer number (5690888611).

Almost surely, 2^22761091669 is an apocalyptic number.

It is an amenable number.

22761091669 is a deficient number, since it is larger than the sum of its proper divisors (2462775).

22761091669 is an equidigital number, since it uses as much as digits as its factorization.

22761091669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2462774.

The product of its (nonzero) digits is 489888, while the sum is 49.

The spelling of 22761091669 in words is "twenty-two billion, seven hundred sixty-one million, ninety-one thousand, six hundred sixty-nine".