73448081065 has 16 divisors (see below), whose sum is σ = 89484224256. Its totient is φ = 57862728000.

The previous prime is 73448081059. The next prime is 73448081089. The reversal of 73448081065 is 56018084437.

It is a happy number.

It is not a de Polignac number, because 73448081065 - 2⁵ = 73448081033 is a prime.

It is a super-2 number, since 2×73448081065² (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 15 ways as a sum of consecutive naturals, for example, 181540 + ... + 424090.

It is an arithmetic number, because the mean of its divisors is an integer number (5592764016).

Almost surely, 2^73448081065 is an apocalyptic number.

It is an amenable number.

73448081065 is a deficient number, since it is larger than the sum of its proper divisors (16036143191).

73448081065 is a wasteful number, since it uses less digits than its factorization.

73448081065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243480.

The product of its (nonzero) digits is 645120, while the sum is 46.

The spelling of 73448081065 in words is "seventy-three billion, four hundred forty-eight million, eighty-one thousand, sixty-five".