85243812304 has 80 divisors (see below), whose sum is σ = 189875847168. Its totient is φ = 36316457856.

The previous prime is 85243812299. The next prime is 85243812319. The reversal of 85243812304 is 40321834258.

It is a super-2 number, since 2×85243812304² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20653089 + ... + 20657215.

Almost surely, 2^85243812304 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 85243812304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94937923584).

85243812304 is an abundant number, since it is smaller than the sum of its proper divisors (104632034864).

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

85243812304 is a wasteful number, since it uses less digits than its factorization.

85243812304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5192 (or 5186 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 40.

The spelling of 85243812304 in words is "eighty-five billion, two hundred forty-three million, eight hundred twelve thousand, three hundred four".