89199190090 has 8 divisors (see below), whose sum is σ = 160558542180. Its totient is φ = 35679676032.

The previous prime is 89199190051. The next prime is 89199190109. The reversal of 89199190090 is 9009199198.

It can be written as a sum of positive squares in 2 ways, for example, as 85481971129 + 3717218961 = 292373^2 + 60969^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4459959495 + ... + 4459959514.

Almost surely, 2^89199190090 is an apocalyptic number.

89199190090 is a deficient number, since it is larger than the sum of its proper divisors (71359352090).

89199190090 is a wasteful number, since it uses less digits than its factorization.

89199190090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8919919016.

The product of its (nonzero) digits is 472392, while the sum is 55.

It can be divided in two parts, 891991 and 90090, that added together give a square (982081 = 991²).

The spelling of 89199190090 in words is "eighty-nine billion, one hundred ninety-nine million, one hundred ninety thousand, ninety".