20472785076223 has 2 divisors, whose sum is σ = 20472785076224. Its totient is φ = 20472785076222.

The previous prime is 20472785076137. The next prime is 20472785076257. The reversal of 20472785076223 is 32267058727402.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20472785076223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20472785076283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10236392538111 + 10236392538112.

It is an arithmetic number, because the mean of its divisors is an integer number (10236392538112).

Almost surely, 2^{20472785076223} is an apocalyptic number.

20472785076223 is a deficient number, since it is larger than the sum of its proper divisors (1).

20472785076223 is an equidigital number, since it uses as much as digits as its factorization.

20472785076223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15805440, while the sum is 55.

The spelling of 20472785076223 in words is "twenty trillion, four hundred seventy-two billion, seven hundred eighty-five million, seventy-six thousand, two hundred twenty-three".