83245499509 has 2 divisors, whose sum is σ = 83245499510. Its totient is φ = 83245499508.

The previous prime is 83245499419. The next prime is 83245499531. The reversal of 83245499509 is 90599454238.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83244944484 + 555025 = 288522^2 + 745^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83245499509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83245490509) 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, 41622749754 + 41622749755.

It is an arithmetic number, because the mean of its divisors is an integer number (41622749755).

Almost surely, 2^83245499509 is an apocalyptic number.

It is an amenable number.

83245499509 is a deficient number, since it is larger than the sum of its proper divisors (1).

83245499509 is an equidigital number, since it uses as much as digits as its factorization.

83245499509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13996800, while the sum is 58.

The spelling of 83245499509 in words is "eighty-three billion, two hundred forty-five million, four hundred ninety-nine thousand, five hundred nine".