8438574911 has 4 divisors (see below), whose sum is σ = 9087696072. Its totient is φ = 7789453752.

The previous prime is 8438574877. The next prime is 8438574913. The reversal of 8438574911 is 1194758348.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 8438574911 - 2⁶ = 8438574847 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8438574911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8438574913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324560561 + ... + 324560586.

It is an arithmetic number, because the mean of its divisors is an integer number (2271924018).

Almost surely, 2^8438574911 is an apocalyptic number.

8438574911 is a deficient number, since it is larger than the sum of its proper divisors (649121161).

8438574911 is a wasteful number, since it uses less digits than its factorization.

8438574911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649121160.

The product of its digits is 967680, while the sum is 50.

The square root of 8438574911 is about 91861.7162424043. The cubic root of 8438574911 is about 2035.8996608450.

The spelling of 8438574911 in words is "eight billion, four hundred thirty-eight million, five hundred seventy-four thousand, nine hundred eleven".