20873424199 has 2 divisors, whose sum is σ = 20873424200. Its totient is φ = 20873424198.

The previous prime is 20873424181. The next prime is 20873424233. The reversal of 20873424199 is 99142437802.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20873424199 - 2¹¹ = 20873422151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20873424139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10436712099 + 10436712100.

It is an arithmetic number, because the mean of its divisors is an integer number (10436712100).

Almost surely, 2^20873424199 is an apocalyptic number.

20873424199 is a deficient number, since it is larger than the sum of its proper divisors (1).

20873424199 is an equidigital number, since it uses as much as digits as its factorization.

20873424199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 870912, while the sum is 49.

The spelling of 20873424199 in words is "twenty billion, eight hundred seventy-three million, four hundred twenty-four thousand, one hundred ninety-nine".