4378765872 has 160 divisors (see below), whose sum is σ = 12815179776. Its totient is φ = 1278950400.

The previous prime is 4378765801. The next prime is 4378765879. The reversal of 4378765872 is 2785678734.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (4378765879) 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, 1023097 + ... + 1027367.

Almost surely, 2^4378765872 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 4378765872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6407589888).

4378765872 is an abundant number, since it is smaller than the sum of its proper divisors (8436413904).

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

4378765872 is a wasteful number, since it uses less digits than its factorization.

4378765872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4379 (or 4373 counting only the distinct ones).

The product of its digits is 15805440, while the sum is 57.

The square root of 4378765872 is about 66172.2439698096. The cubic root of 4378765872 is about 1636.0022935428.

The spelling of 4378765872 in words is "four billion, three hundred seventy-eight million, seven hundred sixty-five thousand, eight hundred seventy-two".