163083847393 has 2 divisors, whose sum is σ = 163083847394. Its totient is φ = 163083847392.

The previous prime is 163083847349. The next prime is 163083847397. The reversal of 163083847393 is 393748380361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 148123377424 + 14960469969 = 384868^2 + 122313^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163083847393 is a prime.

It is not a weakly prime, because it can be changed into another prime (163083847397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81541923696 + 81541923697.

It is an arithmetic number, because the mean of its divisors is an integer number (81541923697).

Almost surely, 2^163083847393 is an apocalyptic number.

It is an amenable number.

163083847393 is a deficient number, since it is larger than the sum of its proper divisors (1).

163083847393 is an equidigital number, since it uses as much as digits as its factorization.

163083847393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7838208, while the sum is 55.

The spelling of 163083847393 in words is "one hundred sixty-three billion, eighty-three million, eight hundred forty-seven thousand, three hundred ninety-three".