279385291373 has 2 divisors, whose sum is σ = 279385291374. Its totient is φ = 279385291372.

The previous prime is 279385291337. The next prime is 279385291421. The reversal of 279385291373 is 373192583972.

Together with previous prime (279385291337) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 240583383049 + 38801908324 = 490493^2 + 196982^2 .

It is a cyclic number.

It is not a de Polignac number, because 279385291373 - 2¹² = 279385287277 is a prime.

It is a super-2 number, since 2×279385291373² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (279385291573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139692645686 + 139692645687.

It is an arithmetic number, because the mean of its divisors is an integer number (139692645687).

Almost surely, 2^279385291373 is an apocalyptic number.

It is an amenable number.

279385291373 is a deficient number, since it is larger than the sum of its proper divisors (1).

279385291373 is an equidigital number, since it uses as much as digits as its factorization.

279385291373 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17146080, while the sum is 59.

The spelling of 279385291373 in words is "two hundred seventy-nine billion, three hundred eighty-five million, two hundred ninety-one thousand, three hundred seventy-three".