4278122447 has 8 divisors (see below), whose sum is σ = 4394638896. Its totient is φ = 4161652992.

The previous prime is 4278122377. The next prime is 4278122473. The reversal of 4278122447 is 7442218724.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4278122447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4278122647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252383 + ... + 268799.

It is an arithmetic number, because the mean of its divisors is an integer number (549329862).

Almost surely, 2^4278122447 is an apocalyptic number.

4278122447 is a deficient number, since it is larger than the sum of its proper divisors (116516449).

4278122447 is a wasteful number, since it uses less digits than its factorization.

4278122447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23497.

The product of its digits is 200704, while the sum is 41.

The square root of 4278122447 is about 65407.3577436056. The cubic root of 4278122447 is about 1623.3708259800.

The spelling of 4278122447 in words is "four billion, two hundred seventy-eight million, one hundred twenty-two thousand, four hundred forty-seven".