278528483573 has 2 divisors, whose sum is σ = 278528483574. Its totient is φ = 278528483572.

The previous prime is 278528483537. The next prime is 278528483621. The reversal of 278528483573 is 375384825872.

Together with previous prime (278528483537) 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., 270360481444 + 8168002129 = 519962^2 + 90377^2 .

It is a cyclic number.

It is not a de Polignac number, because 278528483573 - 2²⁴ = 278511706357 is a prime.

It is a super-2 number, since 2×278528483573² (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 (278528483533) 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, 139264241786 + 139264241787.

It is an arithmetic number, because the mean of its divisors is an integer number (139264241787).

Almost surely, 2^278528483573 is an apocalyptic number.

It is an amenable number.

278528483573 is a deficient number, since it is larger than the sum of its proper divisors (1).

278528483573 is an equidigital number, since it uses as much as digits as its factorization.

278528483573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90316800, while the sum is 62.

The spelling of 278528483573 in words is "two hundred seventy-eight billion, five hundred twenty-eight million, four hundred eighty-three thousand, five hundred seventy-three".