91467987917 has 8 divisors (see below), whose sum is σ = 91619634624. Its totient is φ = 91316389248.

The previous prime is 91467987911. The next prime is 91467987983. The reversal of 91467987917 is 71978976419.

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

It is a cyclic number.

It is not a de Polignac number, because 91467987917 - 2⁴ = 91467987901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91467987911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7452728 + ... + 7464990.

It is an arithmetic number, because the mean of its divisors is an integer number (11452454328).

Almost surely, 2^91467987917 is an apocalyptic number.

It is an amenable number.

91467987917 is a deficient number, since it is larger than the sum of its proper divisors (151646707).

91467987917 is a wasteful number, since it uses less digits than its factorization.

91467987917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24019.

The product of its digits is 48009024, while the sum is 68.

The spelling of 91467987917 in words is "ninety-one billion, four hundred sixty-seven million, nine hundred eighty-seven thousand, nine hundred seventeen".