83568602489 has 2 divisors, whose sum is σ = 83568602490. Its totient is φ = 83568602488.

The previous prime is 83568602483. The next prime is 83568602497. The reversal of 83568602489 is 98420686538.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74034056464 + 9534546025 = 272092^2 + 97645^2 .

It is a cyclic number.

It is not a de Polignac number, because 83568602489 - 2²⁰ = 83567553913 is a prime.

It is a super-2 number, since 2×83568602489² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (83568602483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41784301244 + 41784301245.

It is an arithmetic number, because the mean of its divisors is an integer number (41784301245).

Almost surely, 2^83568602489 is an apocalyptic number.

It is an amenable number.

83568602489 is a deficient number, since it is larger than the sum of its proper divisors (1).

83568602489 is an equidigital number, since it uses as much as digits as its factorization.

83568602489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19906560, while the sum is 59.

The spelling of 83568602489 in words is "eighty-three billion, five hundred sixty-eight million, six hundred two thousand, four hundred eighty-nine".