10206399869 has 2 divisors, whose sum is σ = 10206399870. Its totient is φ = 10206399868.

The previous prime is 10206399857. The next prime is 10206399877. The reversal of 10206399869 is 96899360201.

10206399869 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10017007225 + 189392644 = 100085^2 + 13762^2 .

It is a cyclic number.

It is not a de Polignac number, because 10206399869 - 2³² = 5911432573 is a prime.

It is a super-2 number, since 2×10206399869² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10206399869.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10206399829) 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, 5103199934 + 5103199935.

It is an arithmetic number, because the mean of its divisors is an integer number (5103199935).

Almost surely, 2^10206399869 is an apocalyptic number.

It is an amenable number.

10206399869 is a deficient number, since it is larger than the sum of its proper divisors (1).

10206399869 is an equidigital number, since it uses as much as digits as its factorization.

10206399869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1259712, while the sum is 53.

The spelling of 10206399869 in words is "ten billion, two hundred six million, three hundred ninety-nine thousand, eight hundred sixty-nine".