28322668152 has 24 divisors (see below), whose sum is σ = 76707226440. Its totient is φ = 9440889360.

The previous prime is 28322668139. The next prime is 28322668163. The reversal of 28322668152 is 25186622382.

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 28322668098 and 28322668107.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 196685124 + ... + 196685267.

It is an arithmetic number, because the mean of its divisors is an integer number (3196134435).

Almost surely, 2^28322668152 is an apocalyptic number.

It is an amenable number.

28322668152 is an abundant number, since it is smaller than the sum of its proper divisors (48384558288).

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

28322668152 is a wasteful number, since it uses less digits than its factorization.

28322668152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393370403 (or 393370396 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The spelling of 28322668152 in words is "twenty-eight billion, three hundred twenty-two million, six hundred sixty-eight thousand, one hundred fifty-two".