38222644349 has 2 divisors, whose sum is σ = 38222644350. Its totient is φ = 38222644348.

The previous prime is 38222644289. The next prime is 38222644363. The reversal of 38222644349 is 94344622283.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19177264324 + 19045380025 = 138482^2 + 138005^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38222644349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38222644549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19111322174 + 19111322175.

It is an arithmetic number, because the mean of its divisors is an integer number (19111322175).

Almost surely, 2^38222644349 is an apocalyptic number.

It is an amenable number.

38222644349 is a deficient number, since it is larger than the sum of its proper divisors (1).

38222644349 is an equidigital number, since it uses as much as digits as its factorization.

38222644349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1990656, while the sum is 47.

The spelling of 38222644349 in words is "thirty-eight billion, two hundred twenty-two million, six hundred forty-four thousand, three hundred forty-nine".