81043529114 has 8 divisors (see below), whose sum is σ = 122493273408. Its totient is φ = 40212437980.

The previous prime is 81043529113. The next prime is 81043529131. The reversal of 81043529114 is 41192534018.

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

It is a super-2 number, since 2×81043529114² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (81043529111) 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, 154662962 + ... + 154663485.

It is an arithmetic number, because the mean of its divisors is an integer number (15311659176).

Almost surely, 2^81043529114 is an apocalyptic number.

81043529114 is a deficient number, since it is larger than the sum of its proper divisors (41449744294).

81043529114 is a wasteful number, since it uses less digits than its factorization.

81043529114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309326580.

The product of its (nonzero) digits is 34560, while the sum is 38.

The spelling of 81043529114 in words is "eighty-one billion, forty-three million, five hundred twenty-nine thousand, one hundred fourteen".