83389845569 has 2 divisors, whose sum is σ = 83389845570. Its totient is φ = 83389845568.

The previous prime is 83389845563. The next prime is 83389845601. The reversal of 83389845569 is 96554898338.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45161775169 + 38228070400 = 212513^2 + 195520^2 .

It is a cyclic number.

It is not a de Polignac number, because 83389845569 - 2²⁰ = 83388796993 is a prime.

It is a super-2 number, since 2×83389845569² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 83389845499 and 83389845508.

It is not a weakly prime, because it can be changed into another prime (83389845563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41694922784 + 41694922785.

It is an arithmetic number, because the mean of its divisors is an integer number (41694922785).

Almost surely, 2^83389845569 is an apocalyptic number.

It is an amenable number.

83389845569 is a deficient number, since it is larger than the sum of its proper divisors (1).

83389845569 is an equidigital number, since it uses as much as digits as its factorization.

83389845569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 223948800, while the sum is 68.

The spelling of 83389845569 in words is "eighty-three billion, three hundred eighty-nine million, eight hundred forty-five thousand, five hundred sixty-nine".