12787428750617 has 8 divisors (see below), whose sum is σ = 12791781837000. Its totient is φ = 12783076383744.

The previous prime is 12787428750611. The next prime is 12787428750641. The reversal of 12787428750617 is 71605782478721.

12787428750617 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 4665863523721 + 8121565226896 = 2160061^2 + 2849836^2 .

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 12787428750617 - 2⁸ = 12787428750361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12787428750611) 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, 36642809 + ... + 36990137.

It is an arithmetic number, because the mean of its divisors is an integer number (1598972729625).

Almost surely, 2^{12787428750617} is an apocalyptic number.

It is an amenable number.

12787428750617 is a deficient number, since it is larger than the sum of its proper divisors (4353086383).

12787428750617 is an equidigital number, since it uses as much as digits as its factorization.

12787428750617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359755.

The product of its (nonzero) digits is 73758720, while the sum is 65.

The spelling of 12787428750617 in words is "twelve trillion, seven hundred eighty-seven billion, four hundred twenty-eight million, seven hundred fifty thousand, six hundred seventeen".