20472573727 has 2 divisors, whose sum is σ = 20472573728. Its totient is φ = 20472573726.

The previous prime is 20472573721. The next prime is 20472573757. The reversal of 20472573727 is 72737527402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20472573727 - 2⁷ = 20472573599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20472573721) 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, 10236286863 + 10236286864.

It is an arithmetic number, because the mean of its divisors is an integer number (10236286864).

Almost surely, 2^20472573727 is an apocalyptic number.

20472573727 is a deficient number, since it is larger than the sum of its proper divisors (1).

20472573727 is an equidigital number, since it uses as much as digits as its factorization.

20472573727 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152480, while the sum is 46.

The spelling of 20472573727 in words is "twenty billion, four hundred seventy-two million, five hundred seventy-three thousand, seven hundred twenty-seven".