82163758868 has 24 divisors (see below), whose sum is σ = 144759605760. Its totient is φ = 40804527680.

The previous prime is 82163758861. The next prime is 82163758933. The reversal of 82163758868 is 86885736128.

It is a self number, because there is not a number n which added to its sum of digits gives 82163758868.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82163758861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 421880 + ... + 585072.

It is an arithmetic number, because the mean of its divisors is an integer number (6031650240).

Almost surely, 2^82163758868 is an apocalyptic number.

It is an amenable number.

82163758868 is a deficient number, since it is larger than the sum of its proper divisors (62595846892).

82163758868 is a wasteful number, since it uses less digits than its factorization.

82163758868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164047 (or 164045 counting only the distinct ones).

The product of its digits is 30965760, while the sum is 62.

The spelling of 82163758868 in words is "eighty-two billion, one hundred sixty-three million, seven hundred fifty-eight thousand, eight hundred sixty-eight".