81084043022 has 8 divisors (see below), whose sum is σ = 121659027672. Its totient is φ = 40531033800.

The previous prime is 81084043003. The next prime is 81084043031. The reversal of 81084043022 is 22034048018.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×81084043022³ (a number of 34 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 81084043022.

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 3 ways as a sum of consecutive naturals, for example, 5484629 + ... + 5499392.

It is an arithmetic number, because the mean of its divisors is an integer number (15207378459).

Almost surely, 2^81084043022 is an apocalyptic number.

81084043022 is a deficient number, since it is larger than the sum of its proper divisors (40574984650).

81084043022 is a wasteful number, since it uses less digits than its factorization.

81084043022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10987714.

The product of its (nonzero) digits is 12288, while the sum is 32.

The spelling of 81084043022 in words is "eighty-one billion, eighty-four million, forty-three thousand, twenty-two".