22549194697 has 2 divisors, whose sum is σ = 22549194698. Its totient is φ = 22549194696.

The previous prime is 22549194691. The next prime is 22549194721. The reversal of 22549194697 is 79649194522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18643444681 + 3905750016 = 136541^2 + 62496^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22549194697 is a prime.

It is not a weakly prime, because it can be changed into another prime (22549194691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11274597348 + 11274597349.

It is an arithmetic number, because the mean of its divisors is an integer number (11274597349).

Almost surely, 2^22549194697 is an apocalyptic number.

It is an amenable number.

22549194697 is a deficient number, since it is larger than the sum of its proper divisors (1).

22549194697 is an equidigital number, since it uses as much as digits as its factorization.

22549194697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9797760, while the sum is 58.

The spelling of 22549194697 in words is "twenty-two billion, five hundred forty-nine million, one hundred ninety-four thousand, six hundred ninety-seven".