7322278189 has 2 divisors, whose sum is σ = 7322278190. Its totient is φ = 7322278188.

The previous prime is 7322278181. The next prime is 7322278193. The reversal of 7322278189 is 9818722237.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6705153225 + 617124964 = 81885^2 + 24842^2 .

It is a cyclic number.

It is not a de Polignac number, because 7322278189 - 2³ = 7322278181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7322278181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3661139094 + 3661139095.

It is an arithmetic number, because the mean of its divisors is an integer number (3661139095).

Almost surely, 2^7322278189 is an apocalyptic number.

It is an amenable number.

7322278189 is a deficient number, since it is larger than the sum of its proper divisors (1).

7322278189 is an equidigital number, since it uses as much as digits as its factorization.

7322278189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 677376, while the sum is 49.

The square root of 7322278189 is about 85570.3113760842. The cubic root of 7322278189 is about 1941.8487874936.

The spelling of 7322278189 in words is "seven billion, three hundred twenty-two million, two hundred seventy-eight thousand, one hundred eighty-nine".