28530245376 has 216 divisors, whose sum is σ = 89911995264. Its totient is φ = 8661565440.

The previous prime is 28530245357. The next prime is 28530245389. The reversal of 28530245376 is 67354203582.

28530245376 is a `hidden beast` number, since 2 + 8 + 5 + 30 + 245 + 376 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1202460 + ... + 1225956.

Almost surely, 2^28530245376 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 28530245376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44955997632).

28530245376 is an abundant number, since it is smaller than the sum of its proper divisors (61381749888).

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

28530245376 is a wasteful number, since it uses less digits than its factorization.

28530245376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23567 (or 23550 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 45.

The spelling of 28530245376 in words is "twenty-eight billion, five hundred thirty million, two hundred forty-five thousand, three hundred seventy-six".