89681398472 has 16 divisors (see below), whose sum is σ = 168311123100. Its totient is φ = 44798432320.

The previous prime is 89681398459. The next prime is 89681398481. The reversal of 89681398472 is 27489318698.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 84847533796 + 4833864676 = 291286^2 + 69526^2 .

It is a junction number, because it is equal to n+sod(n) for n = 89681398399 and 89681398408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5274347 + ... + 5291322.

Almost surely, 2^89681398472 is an apocalyptic number.

It is an amenable number.

89681398472 is a deficient number, since it is larger than the sum of its proper divisors (78629724628).

89681398472 is a wasteful number, since it uses less digits than its factorization.

89681398472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10566736 (or 10566732 counting only the distinct ones).

The product of its digits is 41803776, while the sum is 65.

The spelling of 89681398472 in words is "eighty-nine billion, six hundred eighty-one million, three hundred ninety-eight thousand, four hundred seventy-two".