12144361993 has 8 divisors (see below), whose sum is σ = 12794332320. Its totient is φ = 11495471040.

The previous prime is 12144361973. The next prime is 12144362023. The reversal of 12144361993 is 39916344121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12144361993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12144361973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246688 + ... + 291793.

It is an arithmetic number, because the mean of its divisors is an integer number (1599291540).

Almost surely, 2^12144361993 is an apocalyptic number.

It is an amenable number.

12144361993 is a deficient number, since it is larger than the sum of its proper divisors (649970327).

12144361993 is a wasteful number, since it uses less digits than its factorization.

12144361993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539687.

The product of its digits is 139968, while the sum is 43.

The spelling of 12144361993 in words is "twelve billion, one hundred forty-four million, three hundred sixty-one thousand, nine hundred ninety-three".