7173327649 has 2 divisors, whose sum is σ = 7173327650. Its totient is φ = 7173327648.

The previous prime is 7173327647. The next prime is 7173327673. The reversal of 7173327649 is 9467233717.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4660110225 + 2513217424 = 68265^2 + 50132^2 .

It is a cyclic number.

It is not a de Polignac number, because 7173327649 - 2¹ = 7173327647 is a prime.

Together with 7173327647, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (7173327641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3586663824 + 3586663825.

It is an arithmetic number, because the mean of its divisors is an integer number (3586663825).

Almost surely, 2^7173327649 is an apocalyptic number.

It is an amenable number.

7173327649 is a deficient number, since it is larger than the sum of its proper divisors (1).

7173327649 is an equidigital number, since it uses as much as digits as its factorization.

7173327649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1333584, while the sum is 49.

The square root of 7173327649 is about 84695.4995793755. The cubic root of 7173327649 is about 1928.5913861955.

The spelling of 7173327649 in words is "seven billion, one hundred seventy-three million, three hundred twenty-seven thousand, six hundred forty-nine".