28279300870 has 16 divisors (see below), whose sum is σ = 51121212480. Its totient is φ = 11263171264.

The previous prime is 28279300853. The next prime is 28279300871. The reversal of 28279300870 is 7800397282.

It is a self number, because there is not a number n which added to its sum of digits gives 28279300870.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28279300871) 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, 6066190 + ... + 6070849.

It is an arithmetic number, because the mean of its divisors is an integer number (3195075780).

Almost surely, 2^28279300870 is an apocalyptic number.

28279300870 is a deficient number, since it is larger than the sum of its proper divisors (22841911610).

28279300870 is a wasteful number, since it uses less digits than its factorization.

28279300870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12137279.

The product of its (nonzero) digits is 338688, while the sum is 46.

The spelling of 28279300870 in words is "twenty-eight billion, two hundred seventy-nine million, three hundred thousand, eight hundred seventy".