278055055027 has 2 divisors, whose sum is σ = 278055055028. Its totient is φ = 278055055026.

The previous prime is 278055055007. The next prime is 278055055043. The reversal of 278055055027 is 720550550872.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-278055055027 is a prime.

It is a super-2 number, since 2×278055055027² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (278055055007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139027527513 + 139027527514.

It is an arithmetic number, because the mean of its divisors is an integer number (139027527514).

Almost surely, 2^278055055027 is an apocalyptic number.

278055055027 is a deficient number, since it is larger than the sum of its proper divisors (1).

278055055027 is an equidigital number, since it uses as much as digits as its factorization.

278055055027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 980000, while the sum is 46.

The spelling of 278055055027 in words is "two hundred seventy-eight billion, fifty-five million, fifty-five thousand, twenty-seven".