43842447872 has 40 divisors (see below), whose sum is σ = 90425081472. Its totient is φ = 21214080000.

The previous prime is 43842447871. The next prime is 43842447881. The reversal of 43842447872 is 27874424834.

It is not an unprimeable number, because it can be changed into a prime (43842447871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1365254 + ... + 1396997.

Almost surely, 2^43842447872 is an apocalyptic number.

It is an amenable number.

43842447872 is an abundant number, since it is smaller than the sum of its proper divisors (46582633600).

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

43842447872 is an equidigital number, since it uses as much as digits as its factorization.

43842447872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2762300 (or 2762284 counting only the distinct ones).

The product of its digits is 9633792, while the sum is 53.

The spelling of 43842447872 in words is "forty-three billion, eight hundred forty-two million, four hundred forty-seven thousand, eight hundred seventy-two".