22693317749 has 2 divisors, whose sum is σ = 22693317750. Its totient is φ = 22693317748.

The previous prime is 22693317727. The next prime is 22693317769. The reversal of 22693317749 is 94771339622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21482764900 + 1210552849 = 146570^2 + 34793^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22693317749 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22693317749.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22693317769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11346658874 + 11346658875.

It is an arithmetic number, because the mean of its divisors is an integer number (11346658875).

Almost surely, 2^22693317749 is an apocalyptic number.

It is an amenable number.

22693317749 is a deficient number, since it is larger than the sum of its proper divisors (1).

22693317749 is an equidigital number, since it uses as much as digits as its factorization.

22693317749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3429216, while the sum is 53.

The spelling of 22693317749 in words is "twenty-two billion, six hundred ninety-three million, three hundred seventeen thousand, seven hundred forty-nine".