9973545293 has 2 divisors, whose sum is σ = 9973545294. Its totient is φ = 9973545292.

The previous prime is 9973545289. The next prime is 9973545313. The reversal of 9973545293 is 3925453799.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9701856004 + 271689289 = 98498^2 + 16483^2 .

It is a cyclic number.

It is not a de Polignac number, because 9973545293 - 2² = 9973545289 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9973545793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4986772646 + 4986772647.

It is an arithmetic number, because the mean of its divisors is an integer number (4986772647).

Almost surely, 2^9973545293 is an apocalyptic number.

It is an amenable number.

9973545293 is a deficient number, since it is larger than the sum of its proper divisors (1).

9973545293 is an equidigital number, since it uses as much as digits as its factorization.

9973545293 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9185400, while the sum is 56.

The square root of 9973545293 is about 99867.6388676532. The cubic root of 9973545293 is about 2152.5331809668.

The spelling of 9973545293 in words is "nine billion, nine hundred seventy-three million, five hundred forty-five thousand, two hundred ninety-three".