89465999091 has 16 divisors (see below), whose sum is σ = 136381478400. Its totient is φ = 51103801728.

The previous prime is 89465999089. The next prime is 89465999111. The reversal of 89465999091 is 19099956498.

It is not a de Polignac number, because 89465999091 - 2¹ = 89465999089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (89465999191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 761671 + ... + 871248.

It is an arithmetic number, because the mean of its divisors is an integer number (8523842400).

Almost surely, 2^89465999091 is an apocalyptic number.

89465999091 is a deficient number, since it is larger than the sum of its proper divisors (46915479309).

89465999091 is a wasteful number, since it uses less digits than its factorization.

89465999091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1635538.

The product of its (nonzero) digits is 56687040, while the sum is 69.

The spelling of 89465999091 in words is "eighty-nine billion, four hundred sixty-five million, nine hundred ninety-nine thousand, ninety-one".