28815413768 has 16 divisors (see below), whose sum is σ = 54058436160. Its totient is φ = 14399830800.

The previous prime is 28815413717. The next prime is 28815413777. The reversal of 28815413768 is 86731451882.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 968948 + ... + 998243.

It is an arithmetic number, because the mean of its divisors is an integer number (3378652260).

Almost surely, 2^28815413768 is an apocalyptic number.

It is an amenable number.

28815413768 is a deficient number, since it is larger than the sum of its proper divisors (25243022392).

28815413768 is a wasteful number, since it uses less digits than its factorization.

28815413768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1969028 (or 1969024 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 53.

The spelling of 28815413768 in words is "twenty-eight billion, eight hundred fifteen million, four hundred thirteen thousand, seven hundred sixty-eight".