28675220224 has 216 divisors, whose sum is σ = 70624353408. Its totient is φ = 11565711360.

The previous prime is 28675220221. The next prime is 28675220227. The reversal of 28675220224 is 42202257682.

It is an interprime number because it is at equal distance from previous prime (28675220221) and next prime (28675220227).

It is a super-2 number, since 2×28675220224² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28675220221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14386972 + ... + 14388964.

Almost surely, 2^28675220224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28675220224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35312176704).

28675220224 is an abundant number, since it is smaller than the sum of its proper divisors (41949133184).

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

28675220224 is a wasteful number, since it uses less digits than its factorization.

28675220224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2091 (or 2070 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 40.

The spelling of 28675220224 in words is "twenty-eight billion, six hundred seventy-five million, two hundred twenty thousand, two hundred twenty-four".