91205380696 has 16 divisors (see below), whose sum is σ = 171013436640. Its totient is φ = 45601797600.

The previous prime is 91205380691. The next prime is 91205380727. The reversal of 91205380696 is 69608350219.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91205380691) by changing a digit.

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, 561190 + ... + 705226.

It is an arithmetic number, because the mean of its divisors is an integer number (10688339790).

Almost surely, 2^91205380696 is an apocalyptic number.

It is an amenable number.

91205380696 is a deficient number, since it is larger than the sum of its proper divisors (79808055944).

91205380696 is a wasteful number, since it uses less digits than its factorization.

91205380696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223194 (or 223190 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 49.

The spelling of 91205380696 in words is "ninety-one billion, two hundred five million, three hundred eighty thousand, six hundred ninety-six".