43471672420 has 72 divisors (see below), whose sum is σ = 100548000000. Its totient is φ = 15775763520.

The previous prime is 43471672393. The next prime is 43471672427. The reversal of 43471672420 is 2427617434.

It is not an unprimeable number, because it can be changed into a prime (43471672427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1189581 + ... + 1225579.

It is an arithmetic number, because the mean of its divisors is an integer number (1396500000).

Almost surely, 2^43471672420 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 43471672420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50274000000).

43471672420 is an abundant number, since it is smaller than the sum of its proper divisors (57076327580).

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

43471672420 is a wasteful number, since it uses less digits than its factorization.

43471672420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36529 (or 36516 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 40.

The spelling of 43471672420 in words is "forty-three billion, four hundred seventy-one million, six hundred seventy-two thousand, four hundred twenty".