81096084837 has 6 divisors (see below), whose sum is σ = 117138789222. Its totient is φ = 54064056552.

The previous prime is 81096084781. The next prime is 81096084863. The reversal of 81096084837 is 73848069018.

It can be written as a sum of positive squares in only one way, i.e., 80810001441 + 286083396 = 284271^2 + 16914^2 .

It is not a de Polignac number, because 81096084837 - 2⁷ = 81096084709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81096084137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4505338038 + ... + 4505338055.

It is an arithmetic number, because the mean of its divisors is an integer number (19523131537).

Almost surely, 2^81096084837 is an apocalyptic number.

It is an amenable number.

81096084837 is a deficient number, since it is larger than the sum of its proper divisors (36042704385).

81096084837 is a wasteful number, since it uses less digits than its factorization.

81096084837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9010676099 (or 9010676096 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 54.

The spelling of 81096084837 in words is "eighty-one billion, ninety-six million, eighty-four thousand, eight hundred thirty-seven".