82163758867 has 4 divisors (see below), whose sum is σ = 82274941960. Its totient is φ = 82052575776.

The previous prime is 82163758861. The next prime is 82163758933. The reversal of 82163758867 is 76885736128.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 82163758867 - 2³¹ = 80016275219 is a prime.

It is a super-2 number, since 2×82163758867² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82163758861) 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 in 3 ways as a sum of consecutive naturals, for example, 55590438 + ... + 55591915.

It is an arithmetic number, because the mean of its divisors is an integer number (20568735490).

Almost surely, 2^82163758867 is an apocalyptic number.

82163758867 is a deficient number, since it is larger than the sum of its proper divisors (111183093).

82163758867 is a wasteful number, since it uses less digits than its factorization.

82163758867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111183092.

The product of its digits is 27095040, while the sum is 61.

The spelling of 82163758867 in words is "eighty-two billion, one hundred sixty-three million, seven hundred fifty-eight thousand, eight hundred sixty-seven".