28887733173 has 16 divisors (see below), whose sum is σ = 41512325120. Its totient is φ = 17763136704.

The previous prime is 28887733163. The next prime is 28887733181. The reversal of 28887733173 is 37133778882.

It is not a de Polignac number, because 28887733173 - 2¹⁶ = 28887667637 is a prime.

It is a super-2 number, since 2×28887733173² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28887733103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 239686 + ... + 339447.

It is an arithmetic number, because the mean of its divisors is an integer number (2594520320).

Almost surely, 2^28887733173 is an apocalyptic number.

It is an amenable number.

28887733173 is a deficient number, since it is larger than the sum of its proper divisors (12624591947).

28887733173 is a wasteful number, since it uses less digits than its factorization.

28887733173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580428.

The product of its digits is 9483264, while the sum is 57.

The spelling of 28887733173 in words is "twenty-eight billion, eight hundred eighty-seven million, seven hundred thirty-three thousand, one hundred seventy-three".