28851466616 has 64 divisors (see below), whose sum is σ = 66256289280. Its totient is φ = 11507633280.

The previous prime is 28851466613. The next prime is 28851466661. The reversal of 28851466616 is 61666415882.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28851466613) 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, 255050 + ... + 350361.

It is an arithmetic number, because the mean of its divisors is an integer number (1035254520).

Almost surely, 2^28851466616 is an apocalyptic number.

It is an amenable number.

28851466616 is an abundant number, since it is smaller than the sum of its proper divisors (37404822664).

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

28851466616 is a wasteful number, since it uses less digits than its factorization.

28851466616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605484 (or 605480 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 53.

The spelling of 28851466616 in words is "twenty-eight billion, eight hundred fifty-one million, four hundred sixty-six thousand, six hundred sixteen".