9194820875393 has 2 divisors, whose sum is σ = 9194820875394. Its totient is φ = 9194820875392.

The previous prime is 9194820875299. The next prime is 9194820875411. The reversal of 9194820875393 is 3935780284919.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8092272574864 + 1102548300529 = 2844692^2 + 1050023^2 .

It is a cyclic number.

It is not a de Polignac number, because 9194820875393 - 2¹² = 9194820871297 is a prime.

It is not a weakly prime, because it can be changed into another prime (9194820875593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4597410437696 + 4597410437697.

It is an arithmetic number, because the mean of its divisors is an integer number (4597410437697).

Almost surely, 2^{9194820875393} is an apocalyptic number.

It is an amenable number.

9194820875393 is a deficient number, since it is larger than the sum of its proper divisors (1).

9194820875393 is an equidigital number, since it uses as much as digits as its factorization.

9194820875393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 117573120, while the sum is 68.

The spelling of 9194820875393 in words is "nine trillion, one hundred ninety-four billion, eight hundred twenty million, eight hundred seventy-five thousand, three hundred ninety-three".