8349744479438 has 4 divisors (see below), whose sum is σ = 12524616719160. Its totient is φ = 4174872239718.

The previous prime is 8349744479431. The next prime is 8349744479471.

8349744479438 is nontrivially palindromic in base 10.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8349744479431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2087436119858 + ... + 2087436119861.

It is an arithmetic number, because the mean of its divisors is an integer number (3131154179790).

Almost surely, 2^{8349744479438} is an apocalyptic number.

8349744479438 is a deficient number, since it is larger than the sum of its proper divisors (4174872239722).

8349744479438 is a wasteful number, since it uses less digits than its factorization.

8349744479438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4174872239721.

The product of its digits is 2341011456, while the sum is 74.

The spelling of 8349744479438 in words is "eight trillion, three hundred forty-nine billion, seven hundred forty-four million, four hundred seventy-nine thousand, four hundred thirty-eight".