15947421059 has 8 divisors (see below), whose sum is σ = 17214608160. Its totient is φ = 14728052416.

The previous prime is 15947421037. The next prime is 15947421067. The reversal of 15947421059 is 95012474951.

15947421059 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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15947421059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15947421089) 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, 11953922 + ... + 11955255.

It is an arithmetic number, because the mean of its divisors is an integer number (2151826020).

Almost surely, 2^15947421059 is an apocalyptic number.

15947421059 is a deficient number, since it is larger than the sum of its proper divisors (1267187101).

15947421059 is a wasteful number, since it uses less digits than its factorization.

15947421059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23909229.

The product of its (nonzero) digits is 453600, while the sum is 47.

The spelling of 15947421059 in words is "fifteen billion, nine hundred forty-seven million, four hundred twenty-one thousand, fifty-nine".