91268805911 has 8 divisors (see below), whose sum is σ = 91662831360. Its totient is φ = 90874882168.

The previous prime is 91268805893. The next prime is 91268805931. The reversal of 91268805911 is 11950886219.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91268805911 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 91268805911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91268805931) 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, 2184560 + ... + 2225946.

It is an arithmetic number, because the mean of its divisors is an integer number (11457853920).

Almost surely, 2^91268805911 is an apocalyptic number.

91268805911 is a deficient number, since it is larger than the sum of its proper divisors (394025449).

91268805911 is a wasteful number, since it uses less digits than its factorization.

91268805911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50853.

The product of its (nonzero) digits is 311040, while the sum is 50.

The spelling of 91268805911 in words is "ninety-one billion, two hundred sixty-eight million, eight hundred five thousand, nine hundred eleven".