28366772313 has 16 divisors (see below), whose sum is σ = 41330367936. Its totient is φ = 17162979840.

The previous prime is 28366772299. The next prime is 28366772333. The reversal of 28366772313 is 31327766382.

It is not a de Polignac number, because 28366772313 - 2⁵ = 28366772281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28366772333) 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 15 ways as a sum of consecutive naturals, for example, 705220 + ... + 744357.

It is an arithmetic number, because the mean of its divisors is an integer number (2583147996).

Almost surely, 2^28366772313 is an apocalyptic number.

It is an amenable number.

28366772313 is a deficient number, since it is larger than the sum of its proper divisors (12963595623).

28366772313 is a wasteful number, since it uses less digits than its factorization.

28366772313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1450184.

The product of its digits is 1524096, while the sum is 48.

The spelling of 28366772313 in words is "twenty-eight billion, three hundred sixty-six million, seven hundred seventy-two thousand, three hundred thirteen".