15864342271 has 2 divisors, whose sum is σ = 15864342272. Its totient is φ = 15864342270.

The previous prime is 15864342233. The next prime is 15864342283. The reversal of 15864342271 is 17224346851.

It is a strong prime.

It is an emirp because it is prime and its reverse (17224346851) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15864342271 - 2²⁹ = 15327471359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15864348271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7932171135 + 7932171136.

It is an arithmetic number, because the mean of its divisors is an integer number (7932171136).

Almost surely, 2^15864342271 is an apocalyptic number.

15864342271 is a deficient number, since it is larger than the sum of its proper divisors (1).

15864342271 is an equidigital number, since it uses as much as digits as its factorization.

15864342271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 322560, while the sum is 43.

The spelling of 15864342271 in words is "fifteen billion, eight hundred sixty-four million, three hundred forty-two thousand, two hundred seventy-one".