4278644603 has 2 divisors, whose sum is σ = 4278644604. Its totient is φ = 4278644602.

The previous prime is 4278644597. The next prime is 4278644639. The reversal of 4278644603 is 3064468724.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4278644603 - 2⁸ = 4278644347 is a prime.

It is not a weakly prime, because it can be changed into another prime (4278644653) 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, 2139322301 + 2139322302.

It is an arithmetic number, because the mean of its divisors is an integer number (2139322302).

Almost surely, 2^4278644603 is an apocalyptic number.

4278644603 is a deficient number, since it is larger than the sum of its proper divisors (1).

4278644603 is an equidigital number, since it uses as much as digits as its factorization.

4278644603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 774144, while the sum is 44.

The square root of 4278644603 is about 65411.3491910999. The cubic root of 4278644603 is about 1623.4368688406.

The spelling of 4278644603 in words is "four billion, two hundred seventy-eight million, six hundred forty-four thousand, six hundred three".