28883538756 has 72 divisors (see below), whose sum is σ = 73769439744. Its totient is φ = 9528375360.

The previous prime is 28883538751. The next prime is 28883538787. The reversal of 28883538756 is 65783538882.

28883538756 is a `hidden beast` number, since 28 + 8 + 8 + 3 + 538 + 75 + 6 = 666.

It is a super-2 number, since 2×28883538756² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28883538693 and 28883538702.

It is not an unprimeable number, because it can be changed into a prime (28883538751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1343911 + ... + 1365233.

It is an arithmetic number, because the mean of its divisors is an integer number (1024575552).

Almost surely, 2^28883538756 is an apocalyptic number.

It is an amenable number.

28883538756 is an abundant number, since it is smaller than the sum of its proper divisors (44885900988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28883538756 is a wasteful number, since it uses less digits than its factorization.

28883538756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21721 (or 21716 counting only the distinct ones).

The product of its digits is 77414400, while the sum is 63.

The spelling of 28883538756 in words is "twenty-eight billion, eight hundred eighty-three million, five hundred thirty-eight thousand, seven hundred fifty-six".