15972828905 has 16 divisors (see below), whose sum is σ = 20921160384. Its totient is φ = 11610338880.

The previous prime is 15972828901. The next prime is 15972828917. The reversal of 15972828905 is 50982827951.

It is not a de Polignac number, because 15972828905 - 2² = 15972828901 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15972828901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25874 + ... + 180596.

It is an arithmetic number, because the mean of its divisors is an integer number (1307572524).

Almost surely, 2^15972828905 is an apocalyptic number.

It is an amenable number.

15972828905 is a deficient number, since it is larger than the sum of its proper divisors (4948331479).

15972828905 is a wasteful number, since it uses less digits than its factorization.

15972828905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156616.

The product of its (nonzero) digits is 3628800, while the sum is 56.

The spelling of 15972828905 in words is "fifteen billion, nine hundred seventy-two million, eight hundred twenty-eight thousand, nine hundred five".