12065772673 has 18 divisors (see below), whose sum is σ = 12887472066. Its totient is φ = 11293617024.

The previous prime is 12065772647. The next prime is 12065772679. The reversal of 12065772673 is 37627756021.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 10075542129 + 1990230544 = 100377^2 + 44612^2 .

It is not a de Polignac number, because 12065772673 - 2³³ = 3475838081 is a prime.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12065772679) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 20554686 + ... + 20555272.

Almost surely, 2^12065772673 is an apocalyptic number.

It is an amenable number.

12065772673 is a deficient number, since it is larger than the sum of its proper divisors (821699393).

12065772673 is an frugal number, since it uses more digits than its factorization.

12065772673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1309 (or 703 counting only the distinct ones).

The product of its (nonzero) digits is 740880, while the sum is 46.

The spelling of 12065772673 in words is "twelve billion, sixty-five million, seven hundred seventy-two thousand, six hundred seventy-three".