8573203538 has 8 divisors (see below), whose sum is σ = 12860940540. Its totient is φ = 4286223360.

The previous prime is 8573203523. The next prime is 8573203601. The reversal of 8573203538 is 8353023758.

It can be written as a sum of positive squares in 2 ways, for example, as 7881355729 + 691847809 = 88777^2 + 26303^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159983 + ... + 206738.

Almost surely, 2^8573203538 is an apocalyptic number.

8573203538 is a deficient number, since it is larger than the sum of its proper divisors (4287737002).

8573203538 is a wasteful number, since it uses less digits than its factorization.

8573203538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378412.

The product of its (nonzero) digits is 604800, while the sum is 44.

The square root of 8573203538 is about 92591.5953961265. The cubic root of 8573203538 is about 2046.6694710722.

The spelling of 8573203538 in words is "eight billion, five hundred seventy-three million, two hundred three thousand, five hundred thirty-eight".