4478946912 has 144 divisors (see below), whose sum is σ = 14626422720. Its totient is φ = 1285804800.

The previous prime is 4478946911. The next prime is 4478946937. The reversal of 4478946912 is 2196498744.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4478946911) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22987 + ... + 97397.

It is an arithmetic number, because the mean of its divisors is an integer number (101572380).

Almost surely, 2^4478946912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4478946912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7313211360).

4478946912 is an abundant number, since it is smaller than the sum of its proper divisors (10147475808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4478946912 is a wasteful number, since it uses less digits than its factorization.

4478946912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74457 (or 74446 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The square root of 4478946912 is about 66924.9349047125. The cubic root of 4478946912 is about 1648.3849408697.

The spelling of 4478946912 in words is "four billion, four hundred seventy-eight million, nine hundred forty-six thousand, nine hundred twelve".