20626205800019 has 2 divisors, whose sum is σ = 20626205800020. Its totient is φ = 20626205800018.

The previous prime is 20626205799943. The next prime is 20626205800091. The reversal of 20626205800019 is 91000850262602.

Together with next prime (20626205800091) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20626205800019 - 2⁴⁴ = 3034019755603 is a prime.

It is a super-2 number, since 2×20626205800019² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20626205860019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10313102900009 + 10313102900010.

It is an arithmetic number, because the mean of its divisors is an integer number (10313102900010).

Almost surely, 2^{20626205800019} is an apocalyptic number.

20626205800019 is a deficient number, since it is larger than the sum of its proper divisors (1).

20626205800019 is an equidigital number, since it uses as much as digits as its factorization.

20626205800019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 41.

The spelling of 20626205800019 in words is "twenty trillion, six hundred twenty-six billion, two hundred five million, eight hundred thousand, nineteen".