28318324684 has 24 divisors (see below), whose sum is σ = 55689550560. Its totient is φ = 12501734784.

The previous prime is 28318324667. The next prime is 28318324687. The reversal of 28318324684 is 48642381382.

It is not an unprimeable number, because it can be changed into a prime (28318324687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11837569 + ... + 11839960.

It is an arithmetic number, because the mean of its divisors is an integer number (2320397940).

Almost surely, 2^28318324684 is an apocalyptic number.

It is an amenable number.

28318324684 is a deficient number, since it is larger than the sum of its proper divisors (27371225876).

28318324684 is a wasteful number, since it uses less digits than its factorization.

28318324684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23677569 (or 23677567 counting only the distinct ones).

The product of its digits is 1769472, while the sum is 49.

The spelling of 28318324684 in words is "twenty-eight billion, three hundred eighteen million, three hundred twenty-four thousand, six hundred eighty-four".