83349368789 has 2 divisors, whose sum is σ = 83349368790. Its totient is φ = 83349368788.

The previous prime is 83349368783. The next prime is 83349368797. The reversal of 83349368789 is 98786394338.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50250843889 + 33098524900 = 224167^2 + 181930^2 .

It is a cyclic number.

It is not a de Polignac number, because 83349368789 - 2⁸ = 83349368533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83349368783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41674684394 + 41674684395.

It is an arithmetic number, because the mean of its divisors is an integer number (41674684395).

Almost surely, 2^83349368789 is an apocalyptic number.

It is an amenable number.

83349368789 is a deficient number, since it is larger than the sum of its proper divisors (1).

83349368789 is an equidigital number, since it uses as much as digits as its factorization.

83349368789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 188116992, while the sum is 68.

The spelling of 83349368789 in words is "eighty-three billion, three hundred forty-nine million, three hundred sixty-eight thousand, seven hundred eighty-nine".