4919378432 has 40 divisors (see below), whose sum is σ = 9860872956. Its totient is φ = 2451750912.

The previous prime is 4919378389. The next prime is 4919378441. The reversal of 4919378432 is 2348739194.

It can be written as a sum of positive squares in 2 ways, for example, as 3371428096 + 1547950336 = 58064^2 + 39344^2 .

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144908 + ... + 175604.

Almost surely, 2^4919378432 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 4919378432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4930436478).

4919378432 is an abundant number, since it is smaller than the sum of its proper divisors (4941494524).

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

4919378432 is an equidigital number, since it uses as much as digits as its factorization.

4919378432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31028 (or 31012 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 50.

The square root of 4919378432 is about 70138.2807887390. The cubic root of 4919378432 is about 1700.7353718185.

The spelling of 4919378432 in words is "four billion, nine hundred nineteen million, three hundred seventy-eight thousand, four hundred thirty-two".