4278513217 has 8 divisors (see below), whose sum is σ = 4713682752. Its totient is φ = 3851046000.

The previous prime is 4278513203. The next prime is 4278513229. The reversal of 4278513217 is 7123158724.

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

It is a cyclic number.

It is not a de Polignac number, because 4278513217 - 2¹⁹ = 4277988929 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4278513217.

It is not an unprimeable number, because it can be changed into a prime (4278513257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1924413 + ... + 1926634.

It is an arithmetic number, because the mean of its divisors is an integer number (589210344).

Almost surely, 2^4278513217 is an apocalyptic number.

It is an amenable number.

4278513217 is a deficient number, since it is larger than the sum of its proper divisors (435169535).

4278513217 is a wasteful number, since it uses less digits than its factorization.

4278513217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3851159.

The product of its digits is 94080, while the sum is 40.

The square root of 4278513217 is about 65410.3448775498. The cubic root of 4278513217 is about 1623.4202515019.

The spelling of 4278513217 in words is "four billion, two hundred seventy-eight million, five hundred thirteen thousand, two hundred seventeen".