278182260379 has 2 divisors, whose sum is σ = 278182260380. Its totient is φ = 278182260378.

The previous prime is 278182260299. The next prime is 278182260403. The reversal of 278182260379 is 973062281872.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 278182260379 - 2⁹ = 278182259867 is a prime.

It is not a weakly prime, because it can be changed into another prime (278182230379) 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, 139091130189 + 139091130190.

It is an arithmetic number, because the mean of its divisors is an integer number (139091130190).

Almost surely, 2^278182260379 is an apocalyptic number.

278182260379 is a deficient number, since it is larger than the sum of its proper divisors (1).

278182260379 is an equidigital number, since it uses as much as digits as its factorization.

278182260379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4064256, while the sum is 55.

The spelling of 278182260379 in words is "two hundred seventy-eight billion, one hundred eighty-two million, two hundred sixty thousand, three hundred seventy-nine".