20314722761 has 2 divisors, whose sum is σ = 20314722762. Its totient is φ = 20314722760.

The previous prime is 20314722719. The next prime is 20314722773. The reversal of 20314722761 is 16722741302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18725185600 + 1589537161 = 136840^2 + 39869^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20314722761 is a prime.

It is not a weakly prime, because it can be changed into another prime (20314722161) 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, 10157361380 + 10157361381.

It is an arithmetic number, because the mean of its divisors is an integer number (10157361381).

Almost surely, 2^20314722761 is an apocalyptic number.

It is an amenable number.

20314722761 is a deficient number, since it is larger than the sum of its proper divisors (1).

20314722761 is an equidigital number, since it uses as much as digits as its factorization.

20314722761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 35.

The spelling of 20314722761 in words is "twenty billion, three hundred fourteen million, seven hundred twenty-two thousand, seven hundred sixty-one".