9973545793 has 2 divisors, whose sum is σ = 9973545794. Its totient is φ = 9973545792.

The previous prime is 9973545787. The next prime is 9973545809. The reversal of 9973545793 is 3975453799.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8396423424 + 1577122369 = 91632^2 + 39713^2 .

It is an emirp because it is prime and its reverse (3975453799) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9973545793 - 2¹³ = 9973537601 is a prime.

It is not a weakly prime, because it can be changed into another prime (9973545293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4986772896 + 4986772897.

It is an arithmetic number, because the mean of its divisors is an integer number (4986772897).

Almost surely, 2^9973545793 is an apocalyptic number.

It is an amenable number.

9973545793 is a deficient number, since it is larger than the sum of its proper divisors (1).

9973545793 is an equidigital number, since it uses as much as digits as its factorization.

9973545793 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32148900, while the sum is 61.

The square root of 9973545793 is about 99867.6413709666. The cubic root of 9973545793 is about 2152.5332169375.

The spelling of 9973545793 in words is "nine billion, nine hundred seventy-three million, five hundred forty-five thousand, seven hundred ninety-three".