81743134082 has 16 divisors (see below), whose sum is σ = 123348960000. Its totient is φ = 40627208160.

The previous prime is 81743134019. The next prime is 81743134111. The reversal of 81743134082 is 28043134718.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 319607 + ... + 515397.

It is an arithmetic number, because the mean of its divisors is an integer number (7709310000).

Almost surely, 2^81743134082 is an apocalyptic number.

81743134082 is a deficient number, since it is larger than the sum of its proper divisors (41605825918).

81743134082 is a wasteful number, since it uses less digits than its factorization.

81743134082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197041.

The product of its (nonzero) digits is 129024, while the sum is 41.

The spelling of 81743134082 in words is "eighty-one billion, seven hundred forty-three million, one hundred thirty-four thousand, eighty-two".