83128838523361 has 2 divisors, whose sum is σ = 83128838523362. Its totient is φ = 83128838523360.

The previous prime is 83128838523349. The next prime is 83128838523397. The reversal of 83128838523361 is 16332583882138.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52416803603025 + 30712034920336 = 7239945^2 + 5541844^2 .

It is a cyclic number.

It is not a de Polignac number, because 83128838523361 - 2²⁹ = 83128301652449 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 83128838523361.

It is not a weakly prime, because it can be changed into another prime (83128835523361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41564419261680 + 41564419261681.

It is an arithmetic number, because the mean of its divisors is an integer number (41564419261681).

Almost surely, 2^{83128838523361} is an apocalyptic number.

It is an amenable number.

83128838523361 is a deficient number, since it is larger than the sum of its proper divisors (1).

83128838523361 is an equidigital number, since it uses as much as digits as its factorization.

83128838523361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 39813120, while the sum is 61.

The spelling of 83128838523361 in words is "eighty-three trillion, one hundred twenty-eight billion, eight hundred thirty-eight million, five hundred twenty-three thousand, three hundred sixty-one".