89512545665449 has 27 divisors (see below), whose sum is σ = 97623546472989. Its totient is φ = 82060722342360.

The previous prime is 89512545665437. The next prime is 89512545665467. The reversal of 89512545665449 is 94456654521598.

The square root of 89512545665449 is 9461107.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 89512545665449 - 2²⁵ = 89512512111017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (89512545665749) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 5572583992 + ... + 5572600054.

It is an arithmetic number, because the mean of its divisors is an integer number (3615686906407).

Almost surely, 2^{89512545665449} is an apocalyptic number.

89512545665449 is the 9461107-th square number.

89512545665449 is the 4730554-th centered octagonal number.

It is an amenable number.

89512545665449 is a deficient number, since it is larger than the sum of its proper divisors (8111000807540).

89512545665449 is an frugal number, since it uses more digits than its factorization.

89512545665449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32226 (or 16113 counting only the distinct ones).

The product of its digits is 1866240000, while the sum is 73.

The spelling of 89512545665449 in words is "eighty-nine trillion, five hundred twelve billion, five hundred forty-five million, six hundred sixty-five thousand, four hundred forty-nine".