12878127248731 has 2 divisors, whose sum is σ = 12878127248732. Its totient is φ = 12878127248730.

The previous prime is 12878127248671. The next prime is 12878127248773. The reversal of 12878127248731 is 13784272187821.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (13784272187821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12878127248731 - 2¹⁵ = 12878127215963 is a prime.

It is a super-2 number, since 2×12878127248731² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12878127248731.

It is not a weakly prime, because it can be changed into another prime (12878127248431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6439063624365 + 6439063624366.

It is an arithmetic number, because the mean of its divisors is an integer number (6439063624366).

Almost surely, 2^{12878127248731} is an apocalyptic number.

12878127248731 is a deficient number, since it is larger than the sum of its proper divisors (1).

12878127248731 is an equidigital number, since it uses as much as digits as its factorization.

12878127248731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16859136, while the sum is 61.

The spelling of 12878127248731 in words is "twelve trillion, eight hundred seventy-eight billion, one hundred twenty-seven million, two hundred forty-eight thousand, seven hundred thirty-one".