43378430784 has 112 divisors (see below), whose sum is σ = 123704591808. Its totient is φ = 13335994368.

The previous prime is 43378430743. The next prime is 43378430857. The reversal of 43378430784 is 48703487334.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3255624 + ... + 3268920.

It is an arithmetic number, because the mean of its divisors is an integer number (1104505284).

Almost surely, 2^43378430784 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 43378430784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61852295904).

43378430784 is an abundant number, since it is smaller than the sum of its proper divisors (80326161024).

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

43378430784 is a wasteful number, since it uses less digits than its factorization.

43378430784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14632 (or 14622 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 51.

The spelling of 43378430784 in words is "forty-three billion, three hundred seventy-eight million, four hundred thirty thousand, seven hundred eighty-four".