43871126816 has 72 divisors (see below), whose sum is σ = 95108085072. Its totient is φ = 19905494400.

The previous prime is 43871126807. The next prime is 43871126843. The reversal of 43871126816 is 61862117834.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2200991 + ... + 2220833.

It is an arithmetic number, because the mean of its divisors is an integer number (1320945626).

Almost surely, 2^43871126816 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 43871126816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47554042536).

43871126816 is an abundant number, since it is smaller than the sum of its proper divisors (51236958256).

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

43871126816 is a wasteful number, since it uses less digits than its factorization.

43871126816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20446 (or 20427 counting only the distinct ones).

The product of its digits is 387072, while the sum is 47.

The spelling of 43871126816 in words is "forty-three billion, eight hundred seventy-one million, one hundred twenty-six thousand, eight hundred sixteen".