28812645148 has 12 divisors (see below), whose sum is σ = 57625290352. Its totient is φ = 12348276480.

The previous prime is 28812645139. The next prime is 28812645263. The reversal of 28812645148 is 84154621882.

28812645148 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 514511493 + ... + 514511548.

Almost surely, 2^28812645148 is an apocalyptic number.

28812645148 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28812645148 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28812645148 is a wasteful number, since it uses less digits than its factorization.

28812645148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029023052 (or 1029023050 counting only the distinct ones).

The product of its digits is 983040, while the sum is 49.

The spelling of 28812645148 in words is "twenty-eight billion, eight hundred twelve million, six hundred forty-five thousand, one hundred forty-eight".