12673442365 has 8 divisors (see below), whose sum is σ = 15364916280. Its totient is φ = 10034230272.

The previous prime is 12673442311. The next prime is 12673442371. The reversal of 12673442365 is 56324437621.

It can be written as a sum of positive squares in 4 ways, for example, as 30239001 + 12643203364 = 5499^2 + 112442^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12673442365 - 2¹¹ = 12673440317 is a prime.

It is a super-2 number, since 2×12673442365² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13064920 + ... + 13065889.

It is an arithmetic number, because the mean of its divisors is an integer number (1920614535).

Almost surely, 2^12673442365 is an apocalyptic number.

It is an amenable number.

12673442365 is a deficient number, since it is larger than the sum of its proper divisors (2691473915).

12673442365 is an equidigital number, since it uses as much as digits as its factorization.

12673442365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26130911.

The product of its digits is 725760, while the sum is 43.

Adding to 12673442365 its reverse (56324437621), we get a palindrome (68997879986).

The spelling of 12673442365 in words is "twelve billion, six hundred seventy-three million, four hundred forty-two thousand, three hundred sixty-five".