28767729873 has 8 divisors (see below), whose sum is σ = 39173079168. Its totient is φ = 18770433584.

The previous prime is 28767729857. The next prime is 28767729899. The reversal of 28767729873 is 37892776782.

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 28767729873 - 2⁴ = 28767729857 is a prime.

It is a super-2 number, since 2×28767729873² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28767729833) 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, 102013086 + ... + 102013367.

It is an arithmetic number, because the mean of its divisors is an integer number (4896634896).

Almost surely, 2^28767729873 is an apocalyptic number.

It is an amenable number.

28767729873 is a deficient number, since it is larger than the sum of its proper divisors (10405349295).

28767729873 is a wasteful number, since it uses less digits than its factorization.

28767729873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204026503.

The product of its digits is 99574272, while the sum is 66.

The spelling of 28767729873 in words is "twenty-eight billion, seven hundred sixty-seven million, seven hundred twenty-nine thousand, eight hundred seventy-three".