28873158872 has 64 divisors (see below), whose sum is σ = 57032640000. Its totient is φ = 13684857984.

The previous prime is 28873158857. The next prime is 28873158911. The reversal of 28873158872 is 27885137882.

It is a happy number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 3134129 + ... + 3143327.

It is an arithmetic number, because the mean of its divisors is an integer number (891135000).

Almost surely, 2^28873158872 is an apocalyptic number.

It is an amenable number.

28873158872 is a deficient number, since it is larger than the sum of its proper divisors (28159481128).

28873158872 is a wasteful number, since it uses less digits than its factorization.

28873158872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9480 (or 9476 counting only the distinct ones).

The product of its digits is 12042240, while the sum is 59.

The spelling of 28873158872 in words is "twenty-eight billion, eight hundred seventy-three million, one hundred fifty-eight thousand, eight hundred seventy-two".