28886213673 has 24 divisors (see below), whose sum is σ = 42706998048. Its totient is φ = 18804284352.

The previous prime is 28886213669. The next prime is 28886213689. The reversal of 28886213673 is 37631268882.

28886213673 is a `hidden beast` number, since 2 + 8 + 8 + 8 + 621 + 3 + 6 + 7 + 3 = 666.

It is not a de Polignac number, because 28886213673 - 2² = 28886213669 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28886213623) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1716486 + ... + 1733232.

It is an arithmetic number, because the mean of its divisors is an integer number (1779458252).

Almost surely, 2^28886213673 is an apocalyptic number.

It is an amenable number.

28886213673 is a deficient number, since it is larger than the sum of its proper divisors (13820784375).

28886213673 is a wasteful number, since it uses less digits than its factorization.

28886213673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21253 (or 21250 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 54.

The spelling of 28886213673 in words is "twenty-eight billion, eight hundred eighty-six million, two hundred thirteen thousand, six hundred seventy-three".