28360724066 has 4 divisors (see below), whose sum is σ = 42541086102. Its totient is φ = 14180362032.

The previous prime is 28360724017. The next prime is 28360724081. The reversal of 28360724066 is 66042706382.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 27152118841 + 1208605225 = 164779^2 + 34765^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7090181015 + ... + 7090181018.

Almost surely, 2^28360724066 is an apocalyptic number.

28360724066 is a deficient number, since it is larger than the sum of its proper divisors (14180362036).

28360724066 is a wasteful number, since it uses less digits than its factorization.

28360724066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14180362035.

The product of its (nonzero) digits is 580608, while the sum is 44.

The spelling of 28360724066 in words is "twenty-eight billion, three hundred sixty million, seven hundred twenty-four thousand, sixty-six".