15968342867 has 4 divisors (see below), whose sum is σ = 15996018216. Its totient is φ = 15940667520.

The previous prime is 15968342849. The next prime is 15968342869. The reversal of 15968342867 is 76824386951.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15968342867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15968342869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13836809 + ... + 13837962.

It is an arithmetic number, because the mean of its divisors is an integer number (3999004554).

Almost surely, 2^15968342867 is an apocalyptic number.

15968342867 is a deficient number, since it is larger than the sum of its proper divisors (27675349).

15968342867 is an equidigital number, since it uses as much as digits as its factorization.

15968342867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27675348.

The product of its digits is 17418240, while the sum is 59.

The spelling of 15968342867 in words is "fifteen billion, nine hundred sixty-eight million, three hundred forty-two thousand, eight hundred sixty-seven".