2163523564823 has 2 divisors, whose sum is σ = 2163523564824. Its totient is φ = 2163523564822.

The previous prime is 2163523564777. The next prime is 2163523564841. The reversal of 2163523564823 is 3284653253612.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2163523564823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2163523564843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1081761782411 + 1081761782412.

It is an arithmetic number, because the mean of its divisors is an integer number (1081761782412).

Almost surely, 2^{2163523564823} is an apocalyptic number.

2163523564823 is a deficient number, since it is larger than the sum of its proper divisors (1).

2163523564823 is an equidigital number, since it uses as much as digits as its factorization.

2163523564823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6220800, while the sum is 50.

The spelling of 2163523564823 in words is "two trillion, one hundred sixty-three billion, five hundred twenty-three million, five hundred sixty-four thousand, eight hundred twenty-three".