28928492208 has 540 divisors, whose sum is σ = 106954446144. Its totient is φ = 7264857600.

The previous prime is 28928492183. The next prime is 28928492209. The reversal of 28928492208 is 80229482982.

It is a happy number.

It is a super-2 number, since 2×28928492208² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28928492209) by changing a digit.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 26466510 + ... + 26467602.

Almost surely, 2^28928492208 is an apocalyptic number.

28928492208 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28928492208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53477223072).

28928492208 is an abundant number, since it is smaller than the sum of its proper divisors (78025953936).

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

28928492208 is a wasteful number, since it uses less digits than its factorization.

28928492208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1174 (or 1147 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 54.

The spelling of 28928492208 in words is "twenty-eight billion, nine hundred twenty-eight million, four hundred ninety-two thousand, two hundred eight".