10020999689 has 2 divisors, whose sum is σ = 10020999690. Its totient is φ = 10020999688.

The previous prime is 10020999683. The next prime is 10020999713. The reversal of 10020999689 is 98699902001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9728863225 + 292136464 = 98635^2 + 17092^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10020999689 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10020999689.

It is not a weakly prime, because it can be changed into another prime (10020999683) 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, 5010499844 + 5010499845.

It is an arithmetic number, because the mean of its divisors is an integer number (5010499845).

Almost surely, 2^10020999689 is an apocalyptic number.

It is an amenable number.

10020999689 is a deficient number, since it is larger than the sum of its proper divisors (1).

10020999689 is an equidigital number, since it uses as much as digits as its factorization.

10020999689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 629856, while the sum is 53.

The spelling of 10020999689 in words is "ten billion, twenty million, nine hundred ninety-nine thousand, six hundred eighty-nine".