278248725145211 has 2 divisors, whose sum is σ = 278248725145212. Its totient is φ = 278248725145210.

The previous prime is 278248725145159. The next prime is 278248725145231. The reversal of 278248725145211 is 112541527842872.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 278248725145211 - 2¹⁸ = 278248724883067 is a prime.

It is not a weakly prime, because it can be changed into another prime (278248725145231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139124362572605 + 139124362572606.

It is an arithmetic number, because the mean of its divisors is an integer number (139124362572606).

Almost surely, 2^{278248725145211} is an apocalyptic number.

278248725145211 is a deficient number, since it is larger than the sum of its proper divisors (1).

278248725145211 is an equidigital number, since it uses as much as digits as its factorization.

278248725145211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20070400, while the sum is 59.

The spelling of 278248725145211 in words is "two hundred seventy-eight trillion, two hundred forty-eight billion, seven hundred twenty-five million, one hundred forty-five thousand, two hundred eleven".