8485521493 has 8 divisors (see below), whose sum is σ = 8531059160. Its totient is φ = 8440104960.

The previous prime is 8485521437. The next prime is 8485521521. The reversal of 8485521493 is 3941255848.

It can be written as a sum of positive squares in 4 ways, for example, as 109977169 + 8375544324 = 10487^2 + 91518^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8485521493 - 2¹³ = 8485513301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8485521413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111973 + ... + 171781.

It is an arithmetic number, because the mean of its divisors is an integer number (1066382395).

Almost surely, 2^8485521493 is an apocalyptic number.

It is an amenable number.

8485521493 is a deficient number, since it is larger than the sum of its proper divisors (45537667).

8485521493 is a wasteful number, since it uses less digits than its factorization.

8485521493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60567.

The product of its digits is 1382400, while the sum is 49.

The square root of 8485521493 is about 92116.8903784751. The cubic root of 8485521493 is about 2039.6681419841.

The spelling of 8485521493 in words is "eight billion, four hundred eighty-five million, five hundred twenty-one thousand, four hundred ninety-three".