12751478026559 has 4 divisors (see below), whose sum is σ = 12870650718504. Its totient is φ = 12632305334616.

The previous prime is 12751478026543. The next prime is 12751478026571. The reversal of 12751478026559 is 95562087415721.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12751478026559 - 2⁴ = 12751478026543 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 (12751478026519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59586345812 + ... + 59586346025.

It is an arithmetic number, because the mean of its divisors is an integer number (3217662679626).

Almost surely, 2^{12751478026559} is an apocalyptic number.

12751478026559 is a deficient number, since it is larger than the sum of its proper divisors (119172691945).

12751478026559 is a wasteful number, since it uses less digits than its factorization.

12751478026559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119172691944.

The product of its (nonzero) digits is 42336000, while the sum is 62.

The spelling of 12751478026559 in words is "twelve trillion, seven hundred fifty-one billion, four hundred seventy-eight million, twenty-six thousand, five hundred fifty-nine".