8085493521 has 16 divisors (see below), whose sum is σ = 13689724800. Its totient is φ = 4620281904.

The previous prime is 8085493489. The next prime is 8085493541. The reversal of 8085493521 is 1253945808.

8085493521 is a `hidden beast` number, since 8 + 0 + 85 + 49 + 3 + 521 = 666.

It is not a de Polignac number, because 8085493521 - 2⁵ = 8085493489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8085493541) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 21390006 + ... + 21390383.

It is an arithmetic number, because the mean of its divisors is an integer number (855607800).

Almost surely, 2^8085493521 is an apocalyptic number.

It is an amenable number.

8085493521 is a deficient number, since it is larger than the sum of its proper divisors (5604231279).

8085493521 is a wasteful number, since it uses less digits than its factorization.

8085493521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42780405 (or 42780399 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

The square root of 8085493521 is about 89919.3723343307. The cubic root of 8085493521 is about 2007.0992307286.

The spelling of 8085493521 in words is "eight billion, eighty-five million, four hundred ninety-three thousand, five hundred twenty-one".