15979395147 has 4 divisors (see below), whose sum is σ = 21305860200. Its totient is φ = 10652930096.

The previous prime is 15979395121. The next prime is 15979395149. The reversal of 15979395147 is 74159397951.

15979395147 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 15979395147 - 2¹⁴ = 15979378763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15979395149) 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 3 ways as a sum of consecutive naturals, for example, 2663232522 + ... + 2663232527.

It is an arithmetic number, because the mean of its divisors is an integer number (5326465050).

Almost surely, 2^15979395147 is an apocalyptic number.

15979395147 is a deficient number, since it is larger than the sum of its proper divisors (5326465053).

15979395147 is an equidigital number, since it uses as much as digits as its factorization.

15979395147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5326465052.

The product of its digits is 10716300, while the sum is 60.

The spelling of 15979395147 in words is "fifteen billion, nine hundred seventy-nine million, three hundred ninety-five thousand, one hundred forty-seven".