81096493512 has 16 divisors (see below), whose sum is σ = 202741233840. Its totient is φ = 27032164496.

The previous prime is 81096493483. The next prime is 81096493531. The reversal of 81096493512 is 21539469018.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1689510258 + ... + 1689510305.

It is an arithmetic number, because the mean of its divisors is an integer number (12671327115).

Almost surely, 2^81096493512 is an apocalyptic number.

It is an amenable number.

81096493512 is an abundant number, since it is smaller than the sum of its proper divisors (121644740328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

81096493512 is a wasteful number, since it uses less digits than its factorization.

81096493512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3379020572 (or 3379020568 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 48.

The spelling of 81096493512 in words is "eighty-one billion, ninety-six million, four hundred ninety-three thousand, five hundred twelve".