2029485491809 has 2 divisors, whose sum is σ = 2029485491810. Its totient is φ = 2029485491808.

The previous prime is 2029485491779. The next prime is 2029485491899. The reversal of 2029485491809 is 9081945849202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1586025390625 + 443460101184 = 1259375^2 + 665928^2 .

It is a cyclic number.

It is not a de Polignac number, because 2029485491809 - 2¹⁷ = 2029485360737 is a prime.

It is a super-2 number, since 2×2029485491809² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2029485491899) 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, 1014742745904 + 1014742745905.

It is an arithmetic number, because the mean of its divisors is an integer number (1014742745905).

Almost surely, 2^{2029485491809} is an apocalyptic number.

It is an amenable number.

2029485491809 is a deficient number, since it is larger than the sum of its proper divisors (1).

2029485491809 is an equidigital number, since it uses as much as digits as its factorization.

2029485491809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14929920, while the sum is 61.

The spelling of 2029485491809 in words is "two trillion, twenty-nine billion, four hundred eighty-five million, four hundred ninety-one thousand, eight hundred nine".