7226609989 has 2 divisors, whose sum is σ = 7226609990. Its totient is φ = 7226609988.

The previous prime is 7226609953. The next prime is 7226609993. The reversal of 7226609989 is 9899066227.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6255228100 + 971381889 = 79090^2 + 31167^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7226609989 is a prime.

It is a super-2 number, since 2×7226609989² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7226607989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3613304994 + 3613304995.

It is an arithmetic number, because the mean of its divisors is an integer number (3613304995).

Almost surely, 2^7226609989 is an apocalyptic number.

It is an amenable number.

7226609989 is a deficient number, since it is larger than the sum of its proper divisors (1).

7226609989 is an equidigital number, since it uses as much as digits as its factorization.

7226609989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5878656, while the sum is 58.

The square root of 7226609989 is about 85009.4699959952. The cubic root of 7226609989 is about 1933.3547021783.

The spelling of 7226609989 in words is "seven billion, two hundred twenty-six million, six hundred nine thousand, nine hundred eighty-nine".