28133538735 has 16 divisors (see below), whose sum is σ = 47382802560. Its totient is φ = 14214840480.

The previous prime is 28133538661. The next prime is 28133538737. The reversal of 28133538735 is 53783533182.

It is not a de Polignac number, because 28133538735 - 2⁷ = 28133538607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28133538737) 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, 49356801 + ... + 49357370.

It is an arithmetic number, because the mean of its divisors is an integer number (2961425160).

Almost surely, 2^28133538735 is an apocalyptic number.

28133538735 is a deficient number, since it is larger than the sum of its proper divisors (19249263825).

28133538735 is a wasteful number, since it uses less digits than its factorization.

28133538735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98714198.

The product of its digits is 1814400, while the sum is 48.

The spelling of 28133538735 in words is "twenty-eight billion, one hundred thirty-three million, five hundred thirty-eight thousand, seven hundred thirty-five".