89473890884561 has 32 divisors (see below), whose sum is σ = 99816672211200. Its totient is φ = 79703848488960.

The previous prime is 89473890884557. The next prime is 89473890884579. The reversal of 89473890884561 is 16548809837498.

It is a cyclic number.

It is not a de Polignac number, because 89473890884561 - 2² = 89473890884557 is a prime.

It is not an unprimeable number, because it can be changed into a prime (89473890884461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1841419055 + ... + 1841467643.

It is an arithmetic number, because the mean of its divisors is an integer number (3119271006600).

Almost surely, 2^{89473890884561} is an apocalyptic number.

It is an amenable number.

89473890884561 is a deficient number, since it is larger than the sum of its proper divisors (10342781326639).

89473890884561 is a wasteful number, since it uses less digits than its factorization.

89473890884561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53849.

The product of its (nonzero) digits is 3344302080, while the sum is 80.

The spelling of 89473890884561 in words is "eighty-nine trillion, four hundred seventy-three billion, eight hundred ninety million, eight hundred eighty-four thousand, five hundred sixty-one".