28532779124 has 48 divisors (see below), whose sum is σ = 53639107200. Its totient is φ = 13232065536.

The previous prime is 28532779091. The next prime is 28532779127. The reversal of 28532779124 is 42197723582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28532779127) 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, 10120187 + ... + 10123005.

It is an arithmetic number, because the mean of its divisors is an integer number (1117481400).

Almost surely, 2^28532779124 is an apocalyptic number.

It is an amenable number.

28532779124 is a deficient number, since it is larger than the sum of its proper divisors (25106328076).

28532779124 is a wasteful number, since it uses less digits than its factorization.

28532779124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4952 (or 4950 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 50.

The spelling of 28532779124 in words is "twenty-eight billion, five hundred thirty-two million, seven hundred seventy-nine thousand, one hundred twenty-four".