28306386166 has 8 divisors (see below), whose sum is σ = 44305647984. Its totient is φ = 13537836840.

The previous prime is 28306386139. The next prime is 28306386169. The reversal of 28306386166 is 66168360382.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28306386169) by changing a digit.

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, 307678065 + ... + 307678156.

It is an arithmetic number, because the mean of its divisors is an integer number (5538205998).

Almost surely, 2^28306386166 is an apocalyptic number.

28306386166 is a deficient number, since it is larger than the sum of its proper divisors (15999261818).

28306386166 is a wasteful number, since it uses less digits than its factorization.

28306386166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615356246.

The product of its (nonzero) digits is 1492992, while the sum is 49.

The spelling of 28306386166 in words is "twenty-eight billion, three hundred six million, three hundred eighty-six thousand, one hundred sixty-six".