28886704968 has 64 divisors (see below), whose sum is σ = 80458168320. Its totient is φ = 8567297600.

The previous prime is 28886704949. The next prime is 28886704981. The reversal of 28886704968 is 86940768882.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a junction number, because it is equal to n+sod(n) for n = 28886704899 and 28886704908.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1151628 + ... + 1176443.

It is an arithmetic number, because the mean of its divisors is an integer number (1257158880).

Almost surely, 2^28886704968 is an apocalyptic number.

It is an amenable number.

28886704968 is an abundant number, since it is smaller than the sum of its proper divisors (51571463352).

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

28886704968 is a wasteful number, since it uses less digits than its factorization.

28886704968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2328138 (or 2328134 counting only the distinct ones).

The product of its (nonzero) digits is 74317824, while the sum is 66.

The spelling of 28886704968 in words is "twenty-eight billion, eight hundred eighty-six million, seven hundred four thousand, nine hundred sixty-eight".