12648180733 has 4 divisors (see below), whose sum is σ = 12956672988. Its totient is φ = 12339688480.

The previous prime is 12648180709. The next prime is 12648180767. The reversal of 12648180733 is 33708184621.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7389465444 + 5258715289 = 85962^2 + 72517^2 .

It is a cyclic number.

It is not a de Polignac number, because 12648180733 - 2⁹ = 12648180221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12648180733.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12648180793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154246066 + ... + 154246147.

It is an arithmetic number, because the mean of its divisors is an integer number (3239168247).

Almost surely, 2^12648180733 is an apocalyptic number.

It is an amenable number.

12648180733 is a deficient number, since it is larger than the sum of its proper divisors (308492255).

12648180733 is an equidigital number, since it uses as much as digits as its factorization.

12648180733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308492254.

The product of its (nonzero) digits is 193536, while the sum is 43.

The spelling of 12648180733 in words is "twelve billion, six hundred forty-eight million, one hundred eighty thousand, seven hundred thirty-three".