2478127841279 has 2 divisors, whose sum is σ = 2478127841280. Its totient is φ = 2478127841278.

The previous prime is 2478127841257. The next prime is 2478127841309. The reversal of 2478127841279 is 9721487218742.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2478127841279 is a prime.

It is a super-2 number, since 2×2478127841279² (a number of 26 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2478127841179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1239063920639 + 1239063920640.

It is an arithmetic number, because the mean of its divisors is an integer number (1239063920640).

Almost surely, 2^{2478127841279} is an apocalyptic number.

2478127841279 is a deficient number, since it is larger than the sum of its proper divisors (1).

2478127841279 is an equidigital number, since it uses as much as digits as its factorization.

2478127841279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25288704, while the sum is 62.

The spelling of 2478127841279 in words is "two trillion, four hundred seventy-eight billion, one hundred twenty-seven million, eight hundred forty-one thousand, two hundred seventy-nine".