43240639075 has 24 divisors (see below), whose sum is σ = 55372614656. Its totient is φ = 33461748000.

The previous prime is 43240639049. The next prime is 43240639093. The reversal of 43240639075 is 57093604234.

It is a de Polignac number, because none of the positive numbers 2^k-43240639075 is a prime.

It is a super-2 number, since 2×43240639075² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1928680 + ... + 1950970.

Almost surely, 2^43240639075 is an apocalyptic number.

43240639075 is a deficient number, since it is larger than the sum of its proper divisors (12131975581).

43240639075 is a wasteful number, since it uses less digits than its factorization.

43240639075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24835 (or 24830 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 43.

The spelling of 43240639075 in words is "forty-three billion, two hundred forty million, six hundred thirty-nine thousand, seventy-five".