91319466285 has 32 divisors (see below), whose sum is σ = 167582684160. Its totient is φ = 47132625600.

The previous prime is 91319466191. The next prime is 91319466307. The reversal of 91319466285 is 58266491319.

91319466285 is a `hidden beast` number, since 9 + 1 + 3 + 1 + 9 + 4 + 6 + 628 + 5 = 666.

It is not a de Polignac number, because 91319466285 - 2¹⁶ = 91319400749 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10906146 + ... + 10914515.

It is an arithmetic number, because the mean of its divisors is an integer number (5236958880).

Almost surely, 2^91319466285 is an apocalyptic number.

It is an amenable number.

91319466285 is a deficient number, since it is larger than the sum of its proper divisors (76263217875).

91319466285 is a wasteful number, since it uses less digits than its factorization.

91319466285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21820706 (or 21820700 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 54.

The spelling of 91319466285 in words is "ninety-one billion, three hundred nineteen million, four hundred sixty-six thousand, two hundred eighty-five".