28100359056 has 160 divisors (see below), whose sum is σ = 90906467328. Its totient is φ = 7266424320.

The previous prime is 28100359039. The next prime is 28100359057. The reversal of 28100359056 is 65095300182.

It is a super-2 number, since 2×28100359056² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28100359057) 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 31 ways as a sum of consecutive naturals, for example, 822246 + ... + 855738.

Almost surely, 2^28100359056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28100359056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45453233664).

28100359056 is an abundant number, since it is smaller than the sum of its proper divisors (62806108272).

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

28100359056 is a wasteful number, since it uses less digits than its factorization.

28100359056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33749 (or 33743 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 39.

The spelling of 28100359056 in words is "twenty-eight billion, one hundred million, three hundred fifty-nine thousand, fifty-six".