15939043243 has 8 divisors (see below), whose sum is σ = 16879488480. Its totient is φ = 14998915200.

The previous prime is 15939043231. The next prime is 15939043271. The reversal of 15939043243 is 34234093951.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 15939043243 - 2⁹ = 15939042731 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15939043243.

It is not an unprimeable number, because it can be changed into a prime (15939043223) 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, 28353 + ... + 180781.

It is an arithmetic number, because the mean of its divisors is an integer number (2109936060).

Almost surely, 2^15939043243 is an apocalyptic number.

15939043243 is a deficient number, since it is larger than the sum of its proper divisors (940445237).

15939043243 is a wasteful number, since it uses less digits than its factorization.

15939043243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158597.

The product of its (nonzero) digits is 349920, while the sum is 43.

The spelling of 15939043243 in words is "fifteen billion, nine hundred thirty-nine million, forty-three thousand, two hundred forty-three".