85109825536 has 56 divisors (see below), whose sum is σ = 171094353264. Its totient is φ = 42333634560.

The previous prime is 85109825513. The next prime is 85109825573. The reversal of 85109825536 is 63552890158.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1554141 + ... + 1607971.

Almost surely, 2^85109825536 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 85109825536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85547176632).

85109825536 is an abundant number, since it is smaller than the sum of its proper divisors (85984527728).

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

85109825536 is an equidigital number, since it uses as much as digits as its factorization.

85109825536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54050 (or 54026 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 52.

The spelling of 85109825536 in words is "eighty-five billion, one hundred nine million, eight hundred twenty-five thousand, five hundred thirty-six".