83785408771 has 2 divisors, whose sum is σ = 83785408772. Its totient is φ = 83785408770.

The previous prime is 83785408753. The next prime is 83785408781. The reversal of 83785408771 is 17780458738.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 83785408771 - 2⁵ = 83785408739 is a prime.

It is not a weakly prime, because it can be changed into another prime (83785408741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41892704385 + 41892704386.

It is an arithmetic number, because the mean of its divisors is an integer number (41892704386).

Almost surely, 2^83785408771 is an apocalyptic number.

83785408771 is a deficient number, since it is larger than the sum of its proper divisors (1).

83785408771 is an equidigital number, since it uses as much as digits as its factorization.

83785408771 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10536960, while the sum is 58.

The spelling of 83785408771 in words is "eighty-three billion, seven hundred eighty-five million, four hundred eight thousand, seven hundred seventy-one".