82643169012 has 24 divisors (see below), whose sum is σ = 192881220000. Its totient is φ = 27540986016.

The previous prime is 82643168983. The next prime is 82643169019. The reversal of 82643169012 is 21096134628.

It is a super-3 number, since 3×82643169012³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82643169019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 790887 + ... + 889262.

It is an arithmetic number, because the mean of its divisors is an integer number (8036717500).

Almost surely, 2^82643169012 is an apocalyptic number.

It is an amenable number.

82643169012 is an abundant number, since it is smaller than the sum of its proper divisors (110238050988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82643169012 is a wasteful number, since it uses less digits than its factorization.

82643169012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1684255 (or 1684253 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The spelling of 82643169012 in words is "eighty-two billion, six hundred forty-three million, one hundred sixty-nine thousand, twelve".