28873390888 has 16 divisors (see below), whose sum is σ = 56986956000. Its totient is φ = 13676869296.

The previous prime is 28873390877. The next prime is 28873390891. The reversal of 28873390888 is 88809337882.

It is a super-3 number, since 3×28873390888³ (a number of 32 digits) contains 333 as substring.

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, 94978108 + ... + 94978411.

It is an arithmetic number, because the mean of its divisors is an integer number (3561684750).

Almost surely, 2^28873390888 is an apocalyptic number.

It is an amenable number.

28873390888 is a deficient number, since it is larger than the sum of its proper divisors (28113565112).

28873390888 is a wasteful number, since it uses less digits than its factorization.

28873390888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189956544 (or 189956540 counting only the distinct ones).

The product of its (nonzero) digits is 37158912, while the sum is 64.

The spelling of 28873390888 in words is "twenty-eight billion, eight hundred seventy-three million, three hundred ninety thousand, eight hundred eighty-eight".