28466499648 has 56 divisors (see below), whose sum is σ = 75398132160. Its totient is φ = 9478689280.

The previous prime is 28466499641. The next prime is 28466499701. The reversal of 28466499648 is 84699466482.

It is not an unprimeable number, because it can be changed into a prime (28466499641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101893 + ... + 259451.

Almost surely, 2^28466499648 is an apocalyptic number.

It is an amenable number.

28466499648 is an abundant number, since it is smaller than the sum of its proper divisors (46931632512).

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

28466499648 is a wasteful number, since it uses less digits than its factorization.

28466499648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158515 (or 158505 counting only the distinct ones).

The product of its digits is 143327232, while the sum is 66.

The spelling of 28466499648 in words is "twenty-eight billion, four hundred sixty-six million, four hundred ninety-nine thousand, six hundred forty-eight".