12668605493 has 16 divisors (see below), whose sum is σ = 13090896000. Its totient is φ = 12254054400.

The previous prime is 12668605463. The next prime is 12668605507. The reversal of 12668605493 is 39450686621.

It is a cyclic number.

It is not a de Polignac number, because 12668605493 - 2⁶ = 12668605429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12668605463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1930568 + ... + 1937118.

It is an arithmetic number, because the mean of its divisors is an integer number (818181000).

Almost surely, 2^12668605493 is an apocalyptic number.

It is an amenable number.

12668605493 is a deficient number, since it is larger than the sum of its proper divisors (422290507).

12668605493 is an equidigital number, since it uses as much as digits as its factorization.

12668605493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7132.

The product of its (nonzero) digits is 1866240, while the sum is 50.

The spelling of 12668605493 in words is "twelve billion, six hundred sixty-eight million, six hundred five thousand, four hundred ninety-three".