28932649216 has 27 divisors (see below), whose sum is σ = 57757713223. Its totient is φ = 14464963840.

The previous prime is 28932649181. The next prime is 28932649217. The reversal of 28932649216 is 61294623982.

The square root of 28932649216 is 170096.

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

It is a super-2 number, since 2×28932649216² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28932649217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2716221 + ... + 2726851.

Almost surely, 2^28932649216 is an apocalyptic number.

28932649216 is the 170096-th square number.

It is an amenable number.

28932649216 is a deficient number, since it is larger than the sum of its proper divisors (28825064007).

28932649216 is an frugal number, since it uses more digits than its factorization.

28932649216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21278 (or 10633 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 52.

The spelling of 28932649216 in words is "twenty-eight billion, nine hundred thirty-two million, six hundred forty-nine thousand, two hundred sixteen".