4278260507639 has 2 divisors, whose sum is σ = 4278260507640. Its totient is φ = 4278260507638.

The previous prime is 4278260507611. The next prime is 4278260507659. The reversal of 4278260507639 is 9367050628724.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4278260507639 - 2⁴⁰ = 3178748879863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4278260507659) 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, 2139130253819 + 2139130253820.

It is an arithmetic number, because the mean of its divisors is an integer number (2139130253820).

Almost surely, 2^{4278260507639} is an apocalyptic number.

4278260507639 is a deficient number, since it is larger than the sum of its proper divisors (1).

4278260507639 is an equidigital number, since it uses as much as digits as its factorization.

4278260507639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30481920, while the sum is 59.

The spelling of 4278260507639 in words is "four trillion, two hundred seventy-eight billion, two hundred sixty million, five hundred seven thousand, six hundred thirty-nine".