4378945536 has 336 divisors, whose sum is σ = 15038805600. Its totient is φ = 1248141312.

The previous prime is 4378945531. The next prime is 4378945537. The reversal of 4378945536 is 6355498734.

4378945536 is a `hidden beast` number, since 4 + 3 + 7 + 89 + 4 + 553 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (336).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (4378945531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 10450735 + ... + 10451153.

It is an arithmetic number, because the mean of its divisors is an integer number (44758350).

Almost surely, 2^4378945536 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 4378945536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7519402800).

4378945536 is an abundant number, since it is smaller than the sum of its proper divisors (10659860064).

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

4378945536 is an frugal number, since it uses more digits than its factorization.

4378945536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466 (or 431 counting only the distinct ones).

The product of its digits is 10886400, while the sum is 54.

The square root of 4378945536 is about 66173.6015039230. The cubic root of 4378945536 is about 1636.0246686978.

The spelling of 4378945536 in words is "four billion, three hundred seventy-eight million, nine hundred forty-five thousand, five hundred thirty-six".