28603327720 has 32 divisors (see below), whose sum is σ = 70208169120. Its totient is φ = 10401209920.

The previous prime is 28603327717. The next prime is 28603327751. The reversal of 28603327720 is 2772330682.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32503342 + ... + 32504221.

It is an arithmetic number, because the mean of its divisors is an integer number (2194005285).

Almost surely, 2^28603327720 is an apocalyptic number.

28603327720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28603327720 is an abundant number, since it is smaller than the sum of its proper divisors (41604841400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28603327720 is a wasteful number, since it uses less digits than its factorization.

28603327720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65007585 (or 65007581 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 40.

The spelling of 28603327720 in words is "twenty-eight billion, six hundred three million, three hundred twenty-seven thousand, seven hundred twenty".