28864548650 has 24 divisors (see below), whose sum is σ = 61357784160. Its totient is φ = 9896416560.

The previous prime is 28864548637. The next prime is 28864548667. The reversal of 28864548650 is 5684546882.

It is a super-4 number, since 4×28864548650⁴ (a number of 43 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41234720 + ... + 41235419.

It is an arithmetic number, because the mean of its divisors is an integer number (2556574340).

Almost surely, 2^28864548650 is an apocalyptic number.

28864548650 is an abundant number, since it is smaller than the sum of its proper divisors (32493235510).

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

28864548650 is a wasteful number, since it uses less digits than its factorization.

28864548650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82470158 (or 82470153 counting only the distinct ones).

The product of its (nonzero) digits is 14745600, while the sum is 56.

The spelling of 28864548650 in words is "twenty-eight billion, eight hundred sixty-four million, five hundred forty-eight thousand, six hundred fifty".