7213743049 has 2 divisors, whose sum is σ = 7213743050. Its totient is φ = 7213743048.

The previous prime is 7213742993. The next prime is 7213743109. The reversal of 7213743049 is 9403473127.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7123360000 + 90383049 = 84400^2 + 9507^2 .

It is an emirp because it is prime and its reverse (9403473127) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7213743049 - 2⁹ = 7213742537 is a prime.

It is not a weakly prime, because it can be changed into another prime (7213743949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3606871524 + 3606871525.

It is an arithmetic number, because the mean of its divisors is an integer number (3606871525).

Almost surely, 2^7213743049 is an apocalyptic number.

It is an amenable number.

7213743049 is a deficient number, since it is larger than the sum of its proper divisors (1).

7213743049 is an equidigital number, since it uses as much as digits as its factorization.

7213743049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127008, while the sum is 40.

The square root of 7213743049 is about 84933.7568284837. The cubic root of 7213743049 is about 1932.2065779686.

The spelling of 7213743049 in words is "seven billion, two hundred thirteen million, seven hundred forty-three thousand, forty-nine".