279143394113 has 2 divisors, whose sum is σ = 279143394114. Its totient is φ = 279143394112.

The previous prime is 279143394073. The next prime is 279143394119. The reversal of 279143394113 is 311493341972.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 166752172609 + 112391221504 = 408353^2 + 335248^2 .

It is a cyclic number.

It is not a de Polignac number, because 279143394113 - 2¹² = 279143390017 is a prime.

It is not a weakly prime, because it can be changed into another prime (279143394119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139571697056 + 139571697057.

It is an arithmetic number, because the mean of its divisors is an integer number (139571697057).

Almost surely, 2^279143394113 is an apocalyptic number.

It is an amenable number.

279143394113 is a deficient number, since it is larger than the sum of its proper divisors (1).

279143394113 is an equidigital number, since it uses as much as digits as its factorization.

279143394113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 489888, while the sum is 47.

The spelling of 279143394113 in words is "two hundred seventy-nine billion, one hundred forty-three million, three hundred ninety-four thousand, one hundred thirteen".