89491189375 has 20 divisors (see below), whose sum is σ = 127803652240. Its totient is φ = 61365384000.

The previous prime is 89491189351. The next prime is 89491189433. The reversal of 89491189375 is 57398119498.

It is not a de Polignac number, because 89491189375 - 2⁷ = 89491189247 is a prime.

It is a super-2 number, since 2×89491189375² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 10223190 + ... + 10231939.

It is an arithmetic number, because the mean of its divisors is an integer number (6390182612).

Almost surely, 2^89491189375 is an apocalyptic number.

89491189375 is a deficient number, since it is larger than the sum of its proper divisors (38312462865).

89491189375 is an equidigital number, since it uses as much as digits as its factorization.

89491189375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20455156 (or 20455141 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 64.

The spelling of 89491189375 in words is "eighty-nine billion, four hundred ninety-one million, one hundred eighty-nine thousand, three hundred seventy-five".