28747068872 has 32 divisors (see below), whose sum is σ = 54655689600. Its totient is φ = 14172338304.

The previous prime is 28747068869. The next prime is 28747068899. The reversal of 28747068872 is 27886074782.

It is a super-2 number, since 2×28747068872² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2867693 + ... + 2877699.

It is an arithmetic number, because the mean of its divisors is an integer number (1707990300).

Almost surely, 2^28747068872 is an apocalyptic number.

It is an amenable number.

28747068872 is a deficient number, since it is larger than the sum of its proper divisors (25908620728).

28747068872 is a wasteful number, since it uses less digits than its factorization.

28747068872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15005 (or 15001 counting only the distinct ones).

The product of its (nonzero) digits is 16859136, while the sum is 59.

The spelling of 28747068872 in words is "twenty-eight billion, seven hundred forty-seven million, sixty-eight thousand, eight hundred seventy-two".