82385805893 has 24 divisors (see below), whose sum is σ = 88328385600. Its totient is φ = 76627283904.

The previous prime is 82385805883. The next prime is 82385805899. The reversal of 82385805893 is 39850858328.

It is a happy number.

It is not a de Polignac number, because 82385805893 - 2²⁸ = 82117370437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82385805899) 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 in 23 ways as a sum of consecutive naturals, for example, 21856913 + ... + 21860681.

It is an arithmetic number, because the mean of its divisors is an integer number (3680349400).

Almost surely, 2^82385805893 is an apocalyptic number.

82385805893 is a gapful number since it is divisible by the number (83) formed by its first and last digit.

It is an amenable number.

82385805893 is a deficient number, since it is larger than the sum of its proper divisors (5942579707).

82385805893 is a wasteful number, since it uses less digits than its factorization.

82385805893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4121 (or 4038 counting only the distinct ones).

The product of its (nonzero) digits is 16588800, while the sum is 59.

The spelling of 82385805893 in words is "eighty-two billion, three hundred eighty-five million, eight hundred five thousand, eight hundred ninety-three".