12746384657 has 8 divisors (see below), whose sum is σ = 12922968096. Its totient is φ = 12569854752.

The previous prime is 12746384611. The next prime is 12746384699. The reversal of 12746384657 is 75648364721.

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 12746384657 - 2⁸ = 12746384401 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12746384599 and 12746384608.

It is not an unprimeable number, because it can be changed into a prime (12746384257) 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, 829478 + ... + 844704.

It is an arithmetic number, because the mean of its divisors is an integer number (1615371012).

Almost surely, 2^12746384657 is an apocalyptic number.

It is an amenable number.

12746384657 is a deficient number, since it is larger than the sum of its proper divisors (176583439).

12746384657 is a wasteful number, since it uses less digits than its factorization.

12746384657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26767.

The product of its digits is 6773760, while the sum is 53.

The spelling of 12746384657 in words is "twelve billion, seven hundred forty-six million, three hundred eighty-four thousand, six hundred fifty-seven".