20334020893 has 2 divisors, whose sum is σ = 20334020894. Its totient is φ = 20334020892.

The previous prime is 20334020887. The next prime is 20334020963. The reversal of 20334020893 is 39802043302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20045462724 + 288558169 = 141582^2 + 16987^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20334020893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20334020813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10167010446 + 10167010447.

It is an arithmetic number, because the mean of its divisors is an integer number (10167010447).

Almost surely, 2^20334020893 is an apocalyptic number.

It is an amenable number.

20334020893 is a deficient number, since it is larger than the sum of its proper divisors (1).

20334020893 is an equidigital number, since it uses as much as digits as its factorization.

20334020893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 34.

The spelling of 20334020893 in words is "twenty billion, three hundred thirty-four million, twenty thousand, eight hundred ninety-three".