91740985712 has 40 divisors (see below), whose sum is σ = 178515360000. Its totient is φ = 45672660992.

The previous prime is 91740985711. The next prime is 91740985717. The reversal of 91740985712 is 21758904719.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91740985711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19114289 + ... + 19119087.

It is an arithmetic number, because the mean of its divisors is an integer number (4462884000).

Almost surely, 2^91740985712 is an apocalyptic number.

It is an amenable number.

91740985712 is a deficient number, since it is larger than the sum of its proper divisors (86774374288).

91740985712 is a wasteful number, since it uses less digits than its factorization.

91740985712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9713 (or 9707 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 53.

The spelling of 91740985712 in words is "ninety-one billion, seven hundred forty million, nine hundred eighty-five thousand, seven hundred twelve".