28993916176 has 15 divisors (see below), whose sum is σ = 56177032261. Its totient is φ = 14496617536.

The previous prime is 28993916141. The next prime is 28993916183. The reversal of 28993916176 is 67161939982.

The square root of 28993916176 is 170276.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 12650850576 + 16343065600 = 112476^2 + 127840^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 659820 + ... + 702388.

Almost surely, 2^28993916176 is an apocalyptic number.

28993916176 is the 170276-th square number.

It is an amenable number.

28993916176 is a deficient number, since it is larger than the sum of its proper divisors (27183116085).

28993916176 is an frugal number, since it uses more digits than its factorization.

28993916176 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85146 (or 42571 counting only the distinct ones).

The product of its digits is 8817984, while the sum is 61.

The spelling of 28993916176 in words is "twenty-eight billion, nine hundred ninety-three million, nine hundred sixteen thousand, one hundred seventy-six".