528635811009 has 32 divisors (see below), whose sum is σ = 767672156160. Its totient is φ = 322300046592.

The previous prime is 528635810971. The next prime is 528635811071. The reversal of 528635811009 is 900118536825.

It is a happy number.

It is not a de Polignac number, because 528635811009 - 2⁸ = 528635810753 is a prime.

It is a super-2 number, since 2×528635811009² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (528635811079) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 460129 + ... + 1126494.

It is an arithmetic number, because the mean of its divisors is an integer number (23989754880).

Almost surely, 2^528635811009 is an apocalyptic number.

It is an amenable number.

528635811009 is a deficient number, since it is larger than the sum of its proper divisors (239036345151).

528635811009 is a wasteful number, since it uses less digits than its factorization.

528635811009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1586829.

The product of its (nonzero) digits is 518400, while the sum is 48.

The spelling of 528635811009 in words is "five hundred twenty-eight billion, six hundred thirty-five million, eight hundred eleven thousand, nine".