89564645045 has 4 divisors (see below), whose sum is σ = 107477574060. Its totient is φ = 71651716032.

The previous prime is 89564645041. The next prime is 89564645063. The reversal of 89564645045 is 54054646598.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 59079135844 + 30485509201 = 243062^2 + 174601^2 .

It is a cyclic number.

It is not a de Polignac number, because 89564645045 - 2² = 89564645041 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89564645041) 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, 8956464500 + ... + 8956464509.

It is an arithmetic number, because the mean of its divisors is an integer number (26869393515).

Almost surely, 2^89564645045 is an apocalyptic number.

It is an amenable number.

89564645045 is a deficient number, since it is larger than the sum of its proper divisors (17912929015).

89564645045 is a wasteful number, since it uses less digits than its factorization.

89564645045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17912929014.

The product of its (nonzero) digits is 20736000, while the sum is 56.

The spelling of 89564645045 in words is "eighty-nine billion, five hundred sixty-four million, six hundred forty-five thousand, forty-five".