43180728039 has 6 divisors (see below), whose sum is σ = 62372162736. Its totient is φ = 28787152020.

The previous prime is 43180728013. The next prime is 43180728047. The reversal of 43180728039 is 93082708134.

It is not a de Polignac number, because 43180728039 - 2¹³ = 43180719847 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43180727985 and 43180728003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43180728139) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2398929327 + ... + 2398929344.

It is an arithmetic number, because the mean of its divisors is an integer number (10395360456).

Almost surely, 2^43180728039 is an apocalyptic number.

43180728039 is a deficient number, since it is larger than the sum of its proper divisors (19191434697).

43180728039 is a wasteful number, since it uses less digits than its factorization.

43180728039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4797858677 (or 4797858674 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 43180728039 in words is "forty-three billion, one hundred eighty million, seven hundred twenty-eight thousand, thirty-nine".