4478985215 has 8 divisors (see below), whose sum is σ = 5476193568. Its totient is φ = 3515580640.

The previous prime is 4478985211. The next prime is 4478985233. The reversal of 4478985215 is 5125898744.

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

It is not a de Polignac number, because 4478985215 - 2² = 4478985211 is a prime.

It is a super-2 number, since 2×4478985215² = 40122617112377192450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4478985211) 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 in 7 ways as a sum of consecutive naturals, for example, 8450651 + ... + 8451180.

It is an arithmetic number, because the mean of its divisors is an integer number (684524196).

Almost surely, 2^4478985215 is an apocalyptic number.

4478985215 is a deficient number, since it is larger than the sum of its proper divisors (997208353).

4478985215 is a wasteful number, since it uses less digits than its factorization.

4478985215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16901889.

The product of its digits is 3225600, while the sum is 53.

The square root of 4478985215 is about 66925.2210679950. The cubic root of 4478985215 is about 1648.3896397353.

The spelling of 4478985215 in words is "four billion, four hundred seventy-eight million, nine hundred eighty-five thousand, two hundred fifteen".