12912718693 has 8 divisors (see below), whose sum is σ = 14999317760. Its totient is φ = 10886600880.

The previous prime is 12912718657. The next prime is 12912718697. The reversal of 12912718693 is 39681721921.

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 12912718693 - 2¹³ = 12912710501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12912718697) 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, 15119853 + ... + 15120706.

It is an arithmetic number, because the mean of its divisors is an integer number (1874914720).

Almost surely, 2^12912718693 is an apocalyptic number.

It is an amenable number.

12912718693 is a deficient number, since it is larger than the sum of its proper divisors (2086599067).

12912718693 is an equidigital number, since it uses as much as digits as its factorization.

12912718693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30240627.

The product of its digits is 326592, while the sum is 49.

The spelling of 12912718693 in words is "twelve billion, nine hundred twelve million, seven hundred eighteen thousand, six hundred ninety-three".