81732724114 has 16 divisors (see below), whose sum is σ = 122989838400. Its totient is φ = 40736281104.

The previous prime is 81732724093. The next prime is 81732724121. The reversal of 81732724114 is 41142723718.

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 7 ways as a sum of consecutive naturals, for example, 939057 + ... + 1022395.

It is an arithmetic number, because the mean of its divisors is an integer number (7686864900).

Almost surely, 2^81732724114 is an apocalyptic number.

81732724114 is a deficient number, since it is larger than the sum of its proper divisors (41257114286).

81732724114 is a wasteful number, since it uses less digits than its factorization.

81732724114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84897.

The product of its digits is 75264, while the sum is 40.

The spelling of 81732724114 in words is "eighty-one billion, seven hundred thirty-two million, seven hundred twenty-four thousand, one hundred fourteen".