15689734091 has 8 divisors (see below), whose sum is σ = 16257838080. Its totient is φ = 15130867752.

The previous prime is 15689734069. The next prime is 15689734111. The reversal of 15689734091 is 19043798651.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15689734091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15689734891) 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, 2305955 + ... + 2312748.

It is an arithmetic number, because the mean of its divisors is an integer number (2032229760).

Almost surely, 2^15689734091 is an apocalyptic number.

15689734091 is a deficient number, since it is larger than the sum of its proper divisors (568103989).

15689734091 is an equidigital number, since it uses as much as digits as its factorization.

15689734091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4618825.

The product of its (nonzero) digits is 1632960, while the sum is 53.

The spelling of 15689734091 in words is "fifteen billion, six hundred eighty-nine million, seven hundred thirty-four thousand, ninety-one".