81327060017 has 8 divisors (see below), whose sum is σ = 92947010112. Its totient is φ = 69707559600.

The previous prime is 81327060007. The next prime is 81327060029. The reversal of 81327060017 is 71006072318.

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

It is not a de Polignac number, because 81327060017 - 2⁶ = 81327059953 is a prime.

It is a super-2 number, since 2×81327060017² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (81327060007) 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, 491267 + ... + 635607.

It is an arithmetic number, because the mean of its divisors is an integer number (11618376264).

Almost surely, 2^81327060017 is an apocalyptic number.

It is an amenable number.

81327060017 is a deficient number, since it is larger than the sum of its proper divisors (11619950095).

81327060017 is a wasteful number, since it uses less digits than its factorization.

81327060017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224839.

The product of its (nonzero) digits is 14112, while the sum is 35.

The spelling of 81327060017 in words is "eighty-one billion, three hundred twenty-seven million, sixty thousand, seventeen".