163924233793 has 2 divisors, whose sum is σ = 163924233794. Its totient is φ = 163924233792.

The previous prime is 163924233773. The next prime is 163924233817. The reversal of 163924233793 is 397332429361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 128903977024 + 35020256769 = 359032^2 + 187137^2 .

It is a cyclic number.

It is not a de Polignac number, because 163924233793 - 2⁵ = 163924233761 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 163924233793.

It is not a weakly prime, because it can be changed into another prime (163924233743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81962116896 + 81962116897.

It is an arithmetic number, because the mean of its divisors is an integer number (81962116897).

Almost surely, 2^163924233793 is an apocalyptic number.

It is an amenable number.

163924233793 is a deficient number, since it is larger than the sum of its proper divisors (1).

163924233793 is an equidigital number, since it uses as much as digits as its factorization.

163924233793 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4408992, while the sum is 52.

The spelling of 163924233793 in words is "one hundred sixty-three billion, nine hundred twenty-four million, two hundred thirty-three thousand, seven hundred ninety-three".