28992566306 has 12 divisors (see below), whose sum is σ = 47801793606. Its totient is φ = 13178439120.

The previous prime is 28992566299. The next prime is 28992566321. The reversal of 28992566306 is 60366529982.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 23530026025 + 5462540281 = 153395^2 + 73909^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 59901755 + ... + 59902238.

Almost surely, 2^28992566306 is an apocalyptic number.

28992566306 is a deficient number, since it is larger than the sum of its proper divisors (18809227300).

28992566306 is a wasteful number, since it uses less digits than its factorization.

28992566306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119804017 (or 119804006 counting only the distinct ones).

The product of its (nonzero) digits is 8398080, while the sum is 56.

The spelling of 28992566306 in words is "twenty-eight billion, nine hundred ninety-two million, five hundred sixty-six thousand, three hundred six".