91732118742 has 24 divisors (see below), whose sum is σ = 216821372040. Its totient is φ = 27797611680.

The previous prime is 91732118717. The next prime is 91732118759. The reversal of 91732118742 is 24781123719.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 231646567 + ... + 231646962.

It is an arithmetic number, because the mean of its divisors is an integer number (9034223835).

Almost surely, 2^91732118742 is an apocalyptic number.

91732118742 is an abundant number, since it is smaller than the sum of its proper divisors (125089253298).

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

91732118742 is a wasteful number, since it uses less digits than its factorization.

91732118742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463293548 (or 463293545 counting only the distinct ones).

The product of its digits is 169344, while the sum is 45.

The spelling of 91732118742 in words is "ninety-one billion, seven hundred thirty-two million, one hundred eighteen thousand, seven hundred forty-two".