81067034108 has 6 divisors (see below), whose sum is σ = 141867309696. Its totient is φ = 40533517052.

The previous prime is 81067034107. The next prime is 81067034119. The reversal of 81067034108 is 80143076018.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81067034107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10133379260 + ... + 10133379267.

It is an arithmetic number, because the mean of its divisors is an integer number (23644551616).

Almost surely, 2^81067034108 is an apocalyptic number.

It is an amenable number.

81067034108 is a deficient number, since it is larger than the sum of its proper divisors (60800275588).

81067034108 is a wasteful number, since it uses less digits than its factorization.

81067034108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20266758531 (or 20266758529 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 38.

The spelling of 81067034108 in words is "eighty-one billion, sixty-seven million, thirty-four thousand, one hundred eight".