28615902018916 has 48 divisors (see below), whose sum is σ = 51826623433200. Its totient is φ = 13814421350400.

The previous prime is 28615902018817. The next prime is 28615902018917. The reversal of 28615902018916 is 61981020951682.

It can be written as a sum of positive squares in 8 ways, for example, as 6670855840000 + 21945046178916 = 2582800^2 + 4684554^2 .

It is not an unprimeable number, because it can be changed into a prime (28615902018917) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22151616 + ... + 23407816.

It is an arithmetic number, because the mean of its divisors is an integer number (1079721321525).

Almost surely, 2^{28615902018916} is an apocalyptic number.

It is an amenable number.

28615902018916 is a deficient number, since it is larger than the sum of its proper divisors (23210721414284).

28615902018916 is a wasteful number, since it uses less digits than its factorization.

28615902018916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1257424 (or 1257422 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 58.

The spelling of 28615902018916 in words is "twenty-eight trillion, six hundred fifteen billion, nine hundred two million, eighteen thousand, nine hundred sixteen".