15972711343 has 4 divisors (see below), whose sum is σ = 16487960128. Its totient is φ = 15457462560.

The previous prime is 15972711317. The next prime is 15972711367. The reversal of 15972711343 is 34311727951.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34311727951 = 1097 ⋅31277783.

It is a cyclic number.

It is not a de Polignac number, because 15972711343 - 2²⁵ = 15939156911 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15972711343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15972711373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 257624346 + ... + 257624407.

It is an arithmetic number, because the mean of its divisors is an integer number (4121990032).

Almost surely, 2^15972711343 is an apocalyptic number.

15972711343 is a deficient number, since it is larger than the sum of its proper divisors (515248785).

15972711343 is an equidigital number, since it uses as much as digits as its factorization.

15972711343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515248784.

The product of its digits is 158760, while the sum is 43.

The spelling of 15972711343 in words is "fifteen billion, nine hundred seventy-two million, seven hundred eleven thousand, three hundred forty-three".