28019550306 has 64 divisors (see below), whose sum is σ = 65920780800. Its totient is φ = 7847683200.

The previous prime is 28019550301. The next prime is 28019550311. The reversal of 28019550306 is 60305591082.

It is an interprime number because it is at equal distance from previous prime (28019550301) and next prime (28019550311).

It is not an unprimeable number, because it can be changed into a prime (28019550301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 221076 + ... + 323903.

It is an arithmetic number, because the mean of its divisors is an integer number (1030012200).

Almost surely, 2^28019550306 is an apocalyptic number.

28019550306 is an abundant number, since it is smaller than the sum of its proper divisors (37901230494).

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

28019550306 is a wasteful number, since it uses less digits than its factorization.

28019550306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545055.

The product of its (nonzero) digits is 64800, while the sum is 39.

The spelling of 28019550306 in words is "twenty-eight billion, nineteen million, five hundred fifty thousand, three hundred six".