4478936823 has 32 divisors (see below), whose sum is σ = 7210035200. Its totient is φ = 2737540800.

The previous prime is 4478936779. The next prime is 4478936831. The reversal of 4478936823 is 3286398744.

4478936823 is a `hidden beast` number, since 4 + 478 + 93 + 6 + 82 + 3 = 666.

It is not a de Polignac number, because 4478936823 - 2⁹ = 4478936311 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 4478936823.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4478936873) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 124918 + ... + 156723.

It is an arithmetic number, because the mean of its divisors is an integer number (225313600).

Almost surely, 2^4478936823 is an apocalyptic number.

4478936823 is a deficient number, since it is larger than the sum of its proper divisors (2731098377).

4478936823 is a wasteful number, since it uses less digits than its factorization.

4478936823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281700 (or 281694 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 54.

The square root of 4478936823 is about 66924.8595291765. The cubic root of 4478936823 is about 1648.3837031853.

The spelling of 4478936823 in words is "four billion, four hundred seventy-eight million, nine hundred thirty-six thousand, eight hundred twenty-three".