20893975763 has 2 divisors, whose sum is σ = 20893975764. Its totient is φ = 20893975762.

The previous prime is 20893975757. The next prime is 20893975829. The reversal of 20893975763 is 36757939802.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20893975763 - 2⁸ = 20893975507 is a prime.

It is not a weakly prime, because it can be changed into another prime (20893975703) 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, 10446987881 + 10446987882.

It is an arithmetic number, because the mean of its divisors is an integer number (10446987882).

Almost surely, 2^20893975763 is an apocalyptic number.

20893975763 is a deficient number, since it is larger than the sum of its proper divisors (1).

20893975763 is an equidigital number, since it uses as much as digits as its factorization.

20893975763 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17146080, while the sum is 59.

The spelling of 20893975763 in words is "twenty billion, eight hundred ninety-three million, nine hundred seventy-five thousand, seven hundred sixty-three".