7744020073 has 2 divisors, whose sum is σ = 7744020074. Its totient is φ = 7744020072.

The previous prime is 7744020059. The next prime is 7744020079. The reversal of 7744020073 is 3700204477.

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., 5725494889 + 2018525184 = 75667^2 + 44928^2 .

It is an emirp because it is prime and its reverse (3700204477) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7744020073 - 2⁵ = 7744020041 is a prime.

It is not a weakly prime, because it can be changed into another prime (7744020079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3872010036 + 3872010037.

It is an arithmetic number, because the mean of its divisors is an integer number (3872010037).

Almost surely, 2^7744020073 is an apocalyptic number.

It is an amenable number.

7744020073 is a deficient number, since it is larger than the sum of its proper divisors (1).

7744020073 is an equidigital number, since it uses as much as digits as its factorization.

7744020073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32928, while the sum is 34.

The square root of 7744020073 is about 88000.1140510625. The cubic root of 7744020073 is about 1978.4366867128.

The spelling of 7744020073 in words is "seven billion, seven hundred forty-four million, twenty thousand, seventy-three".