15973930609 has 32 divisors (see below), whose sum is σ = 21031508736. Its totient is φ = 11772518400.

The previous prime is 15973930559. The next prime is 15973930691. The reversal of 15973930609 is 90603937951.

It is a cyclic number.

It is not a de Polignac number, because 15973930609 - 2¹¹ = 15973928561 is a prime.

It is a super-2 number, since 2×15973930609² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (52) 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 (15973931609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 96834 + ... + 203284.

It is an arithmetic number, because the mean of its divisors is an integer number (657234648).

Almost surely, 2^15973930609 is an apocalyptic number.

It is an amenable number.

15973930609 is a deficient number, since it is larger than the sum of its proper divisors (5057578127).

15973930609 is a wasteful number, since it uses less digits than its factorization.

15973930609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106585.

The product of its (nonzero) digits is 1377810, while the sum is 52.

The spelling of 15973930609 in words is "fifteen billion, nine hundred seventy-three million, nine hundred thirty thousand, six hundred nine".