12693589745 has 8 divisors (see below), whose sum is σ = 15234854784. Its totient is φ = 10153173744.

The previous prime is 12693589703. The next prime is 12693589757. The reversal of 12693589745 is 54798539621.

It is a happy number.

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 12693589745 - 2¹⁸ = 12693327601 is a prime.

It is a super-2 number, since 2×12693589745² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon 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, 178889 + ... + 239558.

It is an arithmetic number, because the mean of its divisors is an integer number (1904356848).

Almost surely, 2^12693589745 is an apocalyptic number.

It is an amenable number.

12693589745 is a deficient number, since it is larger than the sum of its proper divisors (2541265039).

12693589745 is an equidigital number, since it uses as much as digits as its factorization.

12693589745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424519.

The product of its digits is 16329600, while the sum is 59.

The spelling of 12693589745 in words is "twelve billion, six hundred ninety-three million, five hundred eighty-nine thousand, seven hundred forty-five".