12768780747 has 8 divisors (see below), whose sum is σ = 17043022656. Its totient is φ = 8503529672.

The previous prime is 12768780719. The next prime is 12768780751. The reversal of 12768780747 is 74708786721.

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-12768780747 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12768780797) 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, 2244393 + ... + 2250074.

It is an arithmetic number, because the mean of its divisors is an integer number (2130377832).

Almost surely, 2^12768780747 is an apocalyptic number.

12768780747 is a deficient number, since it is larger than the sum of its proper divisors (4274241909).

12768780747 is an equidigital number, since it uses as much as digits as its factorization.

12768780747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4495417.

The product of its (nonzero) digits is 7375872, while the sum is 57.

The spelling of 12768780747 in words is "twelve billion, seven hundred sixty-eight million, seven hundred eighty thousand, seven hundred forty-seven".