528868487898 has 16 divisors (see below), whose sum is σ = 1175263306560. Its totient is φ = 176289495948.

The previous prime is 528868487897. The next prime is 528868488067. The reversal of 528868487898 is 898784868825.

528868487898 is a `hidden beast` number, since 52 + 8 + 8 + 6 + 8 + 487 + 89 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (528868487897) 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 7 ways as a sum of consecutive naturals, for example, 4896930390 + ... + 4896930497.

It is an arithmetic number, because the mean of its divisors is an integer number (73453956660).

Almost surely, 2^528868487898 is an apocalyptic number.

528868487898 is an abundant number, since it is smaller than the sum of its proper divisors (646394818662).

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

528868487898 is a wasteful number, since it uses less digits than its factorization.

528868487898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9793860898 (or 9793860892 counting only the distinct ones).

The product of its digits is 3963617280, while the sum is 81.

The spelling of 528868487898 in words is "five hundred twenty-eight billion, eight hundred sixty-eight million, four hundred eighty-seven thousand, eight hundred ninety-eight".