89485505569 has 16 divisors (see below), whose sum is σ = 97082092800. Its totient is φ = 82210702464.

The previous prime is 89485505521. The next prime is 89485505579. The reversal of 89485505569 is 96550558498.

It is a cyclic number.

It is not a de Polignac number, because 89485505569 - 2⁷ = 89485505441 is a prime.

It is a super-2 number, since 2×89485505569² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 89485505569.

It is not an unprimeable number, because it can be changed into a prime (89485505579) 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, 362332 + ... + 557005.

It is an arithmetic number, because the mean of its divisors is an integer number (6067630800).

Almost surely, 2^89485505569 is an apocalyptic number.

It is an amenable number.

89485505569 is a deficient number, since it is larger than the sum of its proper divisors (7596587231).

89485505569 is a wasteful number, since it uses less digits than its factorization.

89485505569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919512.

The product of its (nonzero) digits is 77760000, while the sum is 64.

The spelling of 89485505569 in words is "eighty-nine billion, four hundred eighty-five million, five hundred five thousand, five hundred sixty-nine".