28546077209 has 8 divisors (see below), whose sum is σ = 30746439360. Its totient is φ = 26346359376.

The previous prime is 28546077167. The next prime is 28546077233. The reversal of 28546077209 is 90277064582.

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

It is a cyclic number.

It is not a de Polignac number, because 28546077209 - 2⁸ = 28546076953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28546077509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67019 + ... + 248160.

It is an arithmetic number, because the mean of its divisors is an integer number (3843304920).

Almost surely, 2^28546077209 is an apocalyptic number.

It is an amenable number.

28546077209 is a deficient number, since it is larger than the sum of its proper divisors (2200362151).

28546077209 is a wasteful number, since it uses less digits than its factorization.

28546077209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322159.

The product of its (nonzero) digits is 1693440, while the sum is 50.

The spelling of 28546077209 in words is "twenty-eight billion, five hundred forty-six million, seventy-seven thousand, two hundred nine".