28928499552 has 72 divisors (see below), whose sum is σ = 86595195960. Its totient is φ = 9135313920.

The previous prime is 28928499541. The next prime is 28928499553. The reversal of 28928499552 is 25599482982.

28928499552 is a `hidden beast` number, since 2 + 8 + 92 + 8 + 499 + 5 + 52 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a self number, because there is not a number n which added to its sum of digits gives 28928499552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28928499553) 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 11 ways as a sum of consecutive naturals, for example, 2637849 + ... + 2648792.

It is an arithmetic number, because the mean of its divisors is an integer number (1202711055).

Almost surely, 2^28928499552 is an apocalyptic number.

It is an amenable number.

28928499552 is an abundant number, since it is smaller than the sum of its proper divisors (57666696408).

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

28928499552 is a wasteful number, since it uses less digits than its factorization.

28928499552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5286676 (or 5286665 counting only the distinct ones).

The product of its digits is 37324800, while the sum is 63.

The spelling of 28928499552 in words is "twenty-eight billion, nine hundred twenty-eight million, four hundred ninety-nine thousand, five hundred fifty-two".