8538170458 has 4 divisors (see below), whose sum is σ = 12807255690. Its totient is φ = 4269085228.

The previous prime is 8538170371. The next prime is 8538170479. The reversal of 8538170458 is 8540718358.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8400272409 + 137898049 = 91653^2 + 11743^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2134542613 + ... + 2134542616.

Almost surely, 2^8538170458 is an apocalyptic number.

8538170458 is a deficient number, since it is larger than the sum of its proper divisors (4269085232).

8538170458 is a wasteful number, since it uses less digits than its factorization.

8538170458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4269085231.

The product of its (nonzero) digits is 1075200, while the sum is 49.

The square root of 8538170458 is about 92402.2210663791. The cubic root of 8538170458 is about 2043.8778649339.

The spelling of 8538170458 in words is "eight billion, five hundred thirty-eight million, one hundred seventy thousand, four hundred fifty-eight".