8458899478 has 4 divisors (see below), whose sum is σ = 12688349220. Its totient is φ = 4229449738.

The previous prime is 8458899469. The next prime is 8458899521. The reversal of 8458899478 is 8749988548.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2114724868 + ... + 2114724871.

It is an arithmetic number, because the mean of its divisors is an integer number (3172087305).

Almost surely, 2^8458899478 is an apocalyptic number.

8458899478 is a deficient number, since it is larger than the sum of its proper divisors (4229449742).

8458899478 is a wasteful number, since it uses less digits than its factorization.

8458899478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4229449741.

The product of its digits is 185794560, while the sum is 70.

The square root of 8458899478 is about 91972.2755943333. The cubic root of 8458899478 is about 2037.5328593092.

The spelling of 8458899478 in words is "eight billion, four hundred fifty-eight million, eight hundred ninety-nine thousand, four hundred seventy-eight".