83366343857 has 2 divisors, whose sum is σ = 83366343858. Its totient is φ = 83366343856.

The previous prime is 83366343829. The next prime is 83366343917. The reversal of 83366343857 is 75834366338.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56126821921 + 27239521936 = 236911^2 + 165044^2 .

It is a cyclic number.

It is not a de Polignac number, because 83366343857 - 2³² = 79071376561 is a prime.

It is not a weakly prime, because it can be changed into another prime (83366343257) 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, 41683171928 + 41683171929.

It is an arithmetic number, because the mean of its divisors is an integer number (41683171929).

Almost surely, 2^83366343857 is an apocalyptic number.

It is an amenable number.

83366343857 is a deficient number, since it is larger than the sum of its proper divisors (1).

83366343857 is an equidigital number, since it uses as much as digits as its factorization.

83366343857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26127360, while the sum is 56.

The spelling of 83366343857 in words is "eighty-three billion, three hundred sixty-six million, three hundred forty-three thousand, eight hundred fifty-seven".