4478816903 has 4 divisors (see below), whose sum is σ = 4885982088. Its totient is φ = 4071651720.

The previous prime is 4478816897. The next prime is 4478816981. The reversal of 4478816903 is 3096188744.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4478816903 - 2⁸ = 4478816647 is a prime.

It is a super-2 number, since 2×4478816903² = 40119601701197022818, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4478813903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203582576 + ... + 203582597.

It is an arithmetic number, because the mean of its divisors is an integer number (1221495522).

Almost surely, 2^4478816903 is an apocalyptic number.

4478816903 is a deficient number, since it is larger than the sum of its proper divisors (407165185).

4478816903 is a wasteful number, since it uses less digits than its factorization.

4478816903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407165184.

The product of its (nonzero) digits is 1161216, while the sum is 50.

The square root of 4478816903 is about 66923.9635930210. The cubic root of 4478816903 is about 1648.3689916630.

The spelling of 4478816903 in words is "four billion, four hundred seventy-eight million, eight hundred sixteen thousand, nine hundred three".