81076321182 has 16 divisors (see below), whose sum is σ = 164572831872. Its totient is φ = 26622075480.

The previous prime is 81076321141. The next prime is 81076321223. The reversal of 81076321182 is 28112367018.

It is an interprime number because it is at equal distance from previous prime (81076321141) and next prime (81076321223).

It is a self number, because there is not a number n which added to its sum of digits gives 81076321182.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 100840794 + ... + 100841597.

It is an arithmetic number, because the mean of its divisors is an integer number (10285801992).

Almost surely, 2^81076321182 is an apocalyptic number.

81076321182 is an abundant number, since it is smaller than the sum of its proper divisors (83496510690).

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

81076321182 is a wasteful number, since it uses less digits than its factorization.

81076321182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201682463.

The product of its (nonzero) digits is 32256, while the sum is 39.

The spelling of 81076321182 in words is "eighty-one billion, seventy-six million, three hundred twenty-one thousand, one hundred eighty-two".