7449222457 has 2 divisors, whose sum is σ = 7449222458. Its totient is φ = 7449222456.

The previous prime is 7449222337. The next prime is 7449222551. The reversal of 7449222457 is 7542229447.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7347232656 + 101989801 = 85716^2 + 10099^2 .

It is an emirp because it is prime and its reverse (7542229447) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7449222457 - 2¹⁵ = 7449189689 is a prime.

It is not a weakly prime, because it can be changed into another prime (7449222857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3724611228 + 3724611229.

It is an arithmetic number, because the mean of its divisors is an integer number (3724611229).

Almost surely, 2^7449222457 is an apocalyptic number.

It is an amenable number.

7449222457 is a deficient number, since it is larger than the sum of its proper divisors (1).

7449222457 is an equidigital number, since it uses as much as digits as its factorization.

7449222457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1128960, while the sum is 46.

The square root of 7449222457 is about 86308.8782049680. The cubic root of 7449222457 is about 1953.0063167109.

The spelling of 7449222457 in words is "seven billion, four hundred forty-nine million, two hundred twenty-two thousand, four hundred fifty-seven".