85993535488 has 384 divisors, whose sum is σ = 224078400000. Its totient is φ = 32774160384.

The previous prime is 85993535447. The next prime is 85993535491. The reversal of 85993535488 is 88453539958.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 226895683 + ... + 226896061.

It is an arithmetic number, because the mean of its divisors is an integer number (583537500).

Almost surely, 2^85993535488 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 85993535488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112039200000).

85993535488 is an abundant number, since it is smaller than the sum of its proper divisors (138084864512).

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

85993535488 is a wasteful number, since it uses less digits than its factorization.

85993535488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458 (or 424 counting only the distinct ones).

The product of its digits is 186624000, while the sum is 67.

The spelling of 85993535488 in words is "eighty-five billion, nine hundred ninety-three million, five hundred thirty-five thousand, four hundred eighty-eight".