91889055327 has 8 divisors (see below), whose sum is σ = 123731797680. Its totient is φ = 60652841600.

The previous prime is 91889055319. The next prime is 91889055331. The reversal of 91889055327 is 72355098819.

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 91889055327 - 2³ = 91889055319 is a prime.

It is a super-3 number, since 3×91889055327³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91889055397) 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, 151631802 + ... + 151632407.

It is an arithmetic number, because the mean of its divisors is an integer number (15466474710).

Almost surely, 2^91889055327 is an apocalyptic number.

91889055327 is a deficient number, since it is larger than the sum of its proper divisors (31842742353).

91889055327 is a wasteful number, since it uses less digits than its factorization.

91889055327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303264313.

The product of its (nonzero) digits is 5443200, while the sum is 57.

The spelling of 91889055327 in words is "ninety-one billion, eight hundred eighty-nine million, fifty-five thousand, three hundred twenty-seven".