89478036512 has 18 divisors (see below), whose sum is σ = 176163215823. Its totient is φ = 44738172192.

The previous prime is 89478036491. The next prime is 89478036523. The reversal of 89478036512 is 21563087498.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 44739018256 + 44739018256 = 211516^2 + 211516^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=211516.

It is a super-2 number, since 2×89478036512² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

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 2 ways as a sum of consecutive naturals, for example, 1665689 + ... + 1718567.

It is a 2-persistent number, because it is pandigital, and so is 2⋅89478036512 = 178956073024, but 3⋅89478036512 = 268434109536 is not.

Almost surely, 2^89478036512 is an apocalyptic number.

It is an amenable number.

89478036512 is a deficient number, since it is larger than the sum of its proper divisors (86685179311).

89478036512 is an frugal number, since it uses more digits than its factorization.

89478036512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105768 (or 52881 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 53.

The spelling of 89478036512 in words is "eighty-nine billion, four hundred seventy-eight million, thirty-six thousand, five hundred twelve".