28300379028 has 24 divisors (see below), whose sum is σ = 67439202432. Its totient is φ = 9232747584.

The previous prime is 28300379021. The next prime is 28300379047. The reversal of 28300379028 is 82097300382.

It is a super-2 number, since 2×28300379028² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28300379021) 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 7 ways as a sum of consecutive naturals, for example, 25088425 + ... + 25089552.

It is an arithmetic number, because the mean of its divisors is an integer number (2809966768).

Almost surely, 2^28300379028 is an apocalyptic number.

It is an amenable number.

28300379028 is an abundant number, since it is smaller than the sum of its proper divisors (39138823404).

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

28300379028 is a wasteful number, since it uses less digits than its factorization.

28300379028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50178031 (or 50178029 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The spelling of 28300379028 in words is "twenty-eight billion, three hundred million, three hundred seventy-nine thousand, twenty-eight".