28321046277 has 16 divisors (see below), whose sum is σ = 39787849920. Its totient is φ = 17869420800.

The previous prime is 28321046263. The next prime is 28321046293. The reversal of 28321046277 is 77264012382.

It is a happy number.

It is not a de Polignac number, because 28321046277 - 2¹² = 28321042181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28321046477) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 185124 + ... + 301517.

It is an arithmetic number, because the mean of its divisors is an integer number (2486740620).

Almost surely, 2^28321046277 is an apocalyptic number.

It is an amenable number.

28321046277 is a deficient number, since it is larger than the sum of its proper divisors (11466803643).

28321046277 is a wasteful number, since it uses less digits than its factorization.

28321046277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487684.

The product of its (nonzero) digits is 225792, while the sum is 42.

The spelling of 28321046277 in words is "twenty-eight billion, three hundred twenty-one million, forty-six thousand, two hundred seventy-seven".