85593523640 has 32 divisors (see below), whose sum is σ = 192594235680. Its totient is φ = 34235843712.

The previous prime is 85593523621. The next prime is 85593523657. The reversal of 85593523640 is 4632539558.

It is a super-2 number, since 2×85593523640² (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 7 ways as a sum of consecutive naturals, for example, 1286882 + ... + 1351758.

It is an arithmetic number, because the mean of its divisors is an integer number (6018569865).

Almost surely, 2^85593523640 is an apocalyptic number.

It is an amenable number.

85593523640 is an abundant number, since it is smaller than the sum of its proper divisors (107000712040).

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

85593523640 is a wasteful number, since it uses less digits than its factorization.

85593523640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97871 (or 97867 counting only the distinct ones).

The product of its (nonzero) digits is 3888000, while the sum is 50.

The spelling of 85593523640 in words is "eighty-five billion, five hundred ninety-three million, five hundred twenty-three thousand, six hundred forty".