28908506922 has 8 divisors (see below), whose sum is σ = 57817013856. Its totient is φ = 9636168972.

The previous prime is 28908506917. The next prime is 28908506927. The reversal of 28908506922 is 22960580982.

28908506922 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (28908506917) and next prime (28908506927).

It is a sphenic number, since it is the product of 3 distinct primes.

28908506922 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (28908506927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2409042238 + ... + 2409042249.

It is an arithmetic number, because the mean of its divisors is an integer number (7227126732).

Almost surely, 2^28908506922 is an apocalyptic number.

28908506922 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28908506922 is a wasteful number, since it uses less digits than its factorization.

28908506922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4818084492.

The product of its (nonzero) digits is 1244160, while the sum is 51.

The spelling of 28908506922 in words is "twenty-eight billion, nine hundred eight million, five hundred six thousand, nine hundred twenty-two".