20773107743 has 2 divisors, whose sum is σ = 20773107744. Its totient is φ = 20773107742.

The previous prime is 20773107697. The next prime is 20773107763. The reversal of 20773107743 is 34770137702.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20773107743 - 2¹⁴ = 20773091359 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20773107743.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20773107763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10386553871 + 10386553872.

It is an arithmetic number, because the mean of its divisors is an integer number (10386553872).

Almost surely, 2^20773107743 is an apocalyptic number.

20773107743 is a deficient number, since it is larger than the sum of its proper divisors (1).

20773107743 is an equidigital number, since it uses as much as digits as its factorization.

20773107743 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 172872, while the sum is 41.

The spelling of 20773107743 in words is "twenty billion, seven hundred seventy-three million, one hundred seven thousand, seven hundred forty-three".