28067763900 has 144 divisors (see below), whose sum is σ = 88667324928. Its totient is φ = 6798528000.

The previous prime is 28067763853. The next prime is 28067763917. The reversal of 28067763900 is 936776082.

It is a super-2 number, since 2×28067763900² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28067763900.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 4884429 + ... + 4890171.

It is an arithmetic number, because the mean of its divisors is an integer number (615745312).

Almost surely, 2^28067763900 is an apocalyptic number.

28067763900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28067763900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44333662464).

28067763900 is an abundant number, since it is smaller than the sum of its proper divisors (60599561028).

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

28067763900 is a wasteful number, since it uses less digits than its factorization.

28067763900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7252 (or 7245 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 48.

The spelling of 28067763900 in words is "twenty-eight billion, sixty-seven million, seven hundred sixty-three thousand, nine hundred".