15813243969 has 8 divisors (see below), whose sum is σ = 21086271360. Its totient is φ = 10541189616.

The previous prime is 15813243959. The next prime is 15813243983. The reversal of 15813243969 is 96934231851.

15813243969 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 15813243969 - 2¹² = 15813239873 is a prime.

It is a super-2 number, since 2×15813243969² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (15813243959) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 204454 + ... + 270975.

It is an arithmetic number, because the mean of its divisors is an integer number (2635783920).

Almost surely, 2^15813243969 is an apocalyptic number.

It is an amenable number.

15813243969 is a deficient number, since it is larger than the sum of its proper divisors (5273027391).

15813243969 is a wasteful number, since it uses less digits than its factorization.

15813243969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486519.

The product of its digits is 1399680, while the sum is 51.

The spelling of 15813243969 in words is "fifteen billion, eight hundred thirteen million, two hundred forty-three thousand, nine hundred sixty-nine".