20047236199 has 2 divisors, whose sum is σ = 20047236200. Its totient is φ = 20047236198.

The previous prime is 20047236197. The next prime is 20047236257. The reversal of 20047236199 is 99163274002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20047236199 - 2¹ = 20047236197 is a prime.

Together with 20047236197, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20047236193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10023618099 + 10023618100.

It is an arithmetic number, because the mean of its divisors is an integer number (10023618100).

Almost surely, 2^20047236199 is an apocalyptic number.

20047236199 is a deficient number, since it is larger than the sum of its proper divisors (1).

20047236199 is an equidigital number, since it uses as much as digits as its factorization.

20047236199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 43.

The spelling of 20047236199 in words is "twenty billion, forty-seven million, two hundred thirty-six thousand, one hundred ninety-nine".