43815347472 has 160 divisors (see below), whose sum is σ = 124952002560. Its totient is φ = 13147384320.

The previous prime is 43815347449. The next prime is 43815347561. The reversal of 43815347472 is 27474351834.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4670947 + ... + 4680317.

It is an arithmetic number, because the mean of its divisors is an integer number (780950016).

Almost surely, 2^43815347472 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 43815347472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62476001280).

43815347472 is an abundant number, since it is smaller than the sum of its proper divisors (81136655088).

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

43815347472 is a wasteful number, since it uses less digits than its factorization.

43815347472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9581 (or 9575 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 48.

The spelling of 43815347472 in words is "forty-three billion, eight hundred fifteen million, three hundred forty-seven thousand, four hundred seventy-two".