20773923841 has 12 divisors (see below), whose sum is σ = 22934768976. Its totient is φ = 18802164920.

The previous prime is 20773923791. The next prime is 20773923851. The reversal of 20773923841 is 14832937702.

It is not a de Polignac number, because 20773923841 - 2¹³ = 20773915649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20773923791 and 20773923800.

It is not an unprimeable number, because it can be changed into a prime (20773923851) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 350695 + ... + 405628.

It is an arithmetic number, because the mean of its divisors is an integer number (1911230748).

Almost surely, 2^20773923841 is an apocalyptic number.

It is an amenable number.

20773923841 is a deficient number, since it is larger than the sum of its proper divisors (2160845135).

20773923841 is a wasteful number, since it uses less digits than its factorization.

20773923841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756572 (or 756561 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 46.

The spelling of 20773923841 in words is "twenty billion, seven hundred seventy-three million, nine hundred twenty-three thousand, eight hundred forty-one".