89545491361 has 4 divisors (see below), whose sum is σ = 89546209924. Its totient is φ = 89544772800.

The previous prime is 89545491289. The next prime is 89545491367. The reversal of 89545491361 is 16319454598.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 75360681361 + 14184810000 = 274519^2 + 119100^2 .

It is a cyclic number.

It is not a de Polignac number, because 89545491361 - 2²¹ = 89543394209 is a prime.

It is a super-3 number, since 3×89545491361³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89545491367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118620 + ... + 439501.

It is an arithmetic number, because the mean of its divisors is an integer number (22386552481).

Almost surely, 2^89545491361 is an apocalyptic number.

It is an amenable number.

89545491361 is a deficient number, since it is larger than the sum of its proper divisors (718563).

89545491361 is a wasteful number, since it uses less digits than its factorization.

89545491361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718562.

The product of its digits is 4665600, while the sum is 55.

The spelling of 89545491361 in words is "eighty-nine billion, five hundred forty-five million, four hundred ninety-one thousand, three hundred sixty-one".