43439042472 has 32 divisors (see below), whose sum is σ = 124111550400. Its totient is φ = 12411154944.

The previous prime is 43439042441. The next prime is 43439042473. The reversal of 43439042472 is 27424093434.

43439042472 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (43439042473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129282697 + ... + 129283032.

It is an arithmetic number, because the mean of its divisors is an integer number (3878485950).

Almost surely, 2^43439042472 is an apocalyptic number.

43439042472 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

43439042472 is an abundant number, since it is smaller than the sum of its proper divisors (80672507928).

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

43439042472 is a wasteful number, since it uses less digits than its factorization.

43439042472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258565745 (or 258565741 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 42.

The spelling of 43439042472 in words is "forty-three billion, four hundred thirty-nine million, forty-two thousand, four hundred seventy-two".