85091075424 has 60 divisors (see below), whose sum is σ = 250250496804. Its totient is φ = 28363690944.

The previous prime is 85091075413. The next prime is 85091075453. The reversal of 85091075424 is 42457019058.

It is a super-2 number, since 2×85091075424² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 85091075424.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 16411582 + ... + 16416765.

Almost surely, 2^85091075424 is an apocalyptic number.

It is an amenable number.

85091075424 is an abundant number, since it is smaller than the sum of its proper divisors (165159421380).

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

85091075424 is a wasteful number, since it uses less digits than its factorization.

85091075424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32828369 (or 32828352 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The spelling of 85091075424 in words is "eighty-five billion, ninety-one million, seventy-five thousand, four hundred twenty-four".