28313733168 has 80 divisors (see below), whose sum is σ = 92881039360. Its totient is φ = 8089637184.

The previous prime is 28313733167. The next prime is 28313733181. The reversal of 28313733168 is 86133731382.

28313733168 is a `hidden beast` number, since 283 + 1 + 37 + 331 + 6 + 8 = 666.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (28313733163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4678480 + ... + 4684527.

It is an arithmetic number, because the mean of its divisors is an integer number (1161012992).

Almost surely, 2^28313733168 is an apocalyptic number.

28313733168 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28313733168 is an abundant number, since it is smaller than the sum of its proper divisors (64567306192).

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

28313733168 is a wasteful number, since it uses less digits than its factorization.

28313733168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9363031 (or 9363019 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The spelling of 28313733168 in words is "twenty-eight billion, three hundred thirteen million, seven hundred thirty-three thousand, one hundred sixty-eight".