27278026147 has 2 divisors, whose sum is σ = 27278026148. Its totient is φ = 27278026146.

The previous prime is 27278026123. The next prime is 27278026157. The reversal of 27278026147 is 74162087272.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27278026147 - 2⁷ = 27278026019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27278026097 and 27278026106.

It is not a weakly prime, because it can be changed into another prime (27278026157) 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, 13639013073 + 13639013074.

It is an arithmetic number, because the mean of its divisors is an integer number (13639013074).

Almost surely, 2^27278026147 is an apocalyptic number.

27278026147 is a deficient number, since it is larger than the sum of its proper divisors (1).

27278026147 is an equidigital number, since it uses as much as digits as its factorization.

27278026147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 526848, while the sum is 46.

The spelling of 27278026147 in words is "twenty-seven billion, two hundred seventy-eight million, twenty-six thousand, one hundred forty-seven".