89289869505505 has 8 divisors (see below), whose sum is σ = 110043731066472. Its totient is φ = 69501303831168.

The previous prime is 89289869505491. The next prime is 89289869505553. The reversal of 89289869505505 is 50550596898298.

It can be written as a sum of positive squares in 4 ways, for example, as 53311274322849 + 35978595182656 = 7301457^2 + 5998216^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 89289869505505 - 2⁷ = 89289869505377 is a prime.

It is a super-2 number, since 2×89289869505505² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241323971452 + ... + 241323971821.

It is an arithmetic number, because the mean of its divisors is an integer number (13755466383309).

Almost surely, 2^{89289869505505} is an apocalyptic number.

It is an amenable number.

89289869505505 is a deficient number, since it is larger than the sum of its proper divisors (20753861560967).

89289869505505 is a wasteful number, since it uses less digits than its factorization.

89289869505505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482647943315.

The product of its (nonzero) digits is 2799360000, while the sum is 79.

The spelling of 89289869505505 in words is "eighty-nine trillion, two hundred eighty-nine billion, eight hundred sixty-nine million, five hundred five thousand, five hundred five".