20710095449 has 2 divisors, whose sum is σ = 20710095450. Its totient is φ = 20710095448.

The previous prime is 20710095391. The next prime is 20710095473. The reversal of 20710095449 is 94459001702.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19667257600 + 1042837849 = 140240^2 + 32293^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20710095449 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (20710095149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10355047724 + 10355047725.

It is an arithmetic number, because the mean of its divisors is an integer number (10355047725).

Almost surely, 2^20710095449 is an apocalyptic number.

It is an amenable number.

20710095449 is a deficient number, since it is larger than the sum of its proper divisors (1).

20710095449 is an equidigital number, since it uses as much as digits as its factorization.

20710095449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 41.

The spelling of 20710095449 in words is "twenty billion, seven hundred ten million, ninety-five thousand, four hundred forty-nine".