16976219728 has 20 divisors (see below), whose sum is σ = 35421535828. Its totient is φ = 7835178240.

The previous prime is 16976219677. The next prime is 16976219761. The reversal of 16976219728 is 82791267961.

It can be written as a sum of positive squares in 2 ways, for example, as 5524651584 + 11451568144 = 74328^2 + 107012^2 .

It is a congruent number.

It is an unprimeable number.

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, 40808013 + ... + 40808428.

Almost surely, 2^16976219728 is an apocalyptic number.

It is an amenable number.

16976219728 is an abundant number, since it is smaller than the sum of its proper divisors (18445316100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16976219728 is a wasteful number, since it uses less digits than its factorization.

16976219728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81616462 (or 81616456 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 58.

The spelling of 16976219728 in words is "sixteen billion, nine hundred seventy-six million, two hundred nineteen thousand, seven hundred twenty-eight".