28066852408 has 16 divisors (see below), whose sum is σ = 60143255280. Its totient is φ = 12028651008.

The previous prime is 28066852403. The next prime is 28066852433. The reversal of 28066852408 is 80425866082.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28066852403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250596841 + ... + 250596952.

It is an arithmetic number, because the mean of its divisors is an integer number (3758953455).

Almost surely, 2^28066852408 is an apocalyptic number.

28066852408 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28066852408 is an abundant number, since it is smaller than the sum of its proper divisors (32076402872).

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

28066852408 is a wasteful number, since it uses less digits than its factorization.

28066852408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501193806 (or 501193802 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 49.

The spelling of 28066852408 in words is "twenty-eight billion, sixty-six million, eight hundred fifty-two thousand, four hundred eight".