8349854943 has 4 divisors (see below), whose sum is σ = 11133139928. Its totient is φ = 5566569960.

The previous prime is 8349854927. The next prime is 8349854977. The reversal of 8349854943 is 3494589438.

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

It is not a de Polignac number, because 8349854943 - 2⁴ = 8349854927 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8349856943) 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, 1391642488 + ... + 1391642493.

It is an arithmetic number, because the mean of its divisors is an integer number (2783284982).

Almost surely, 2^8349854943 is an apocalyptic number.

8349854943 is a deficient number, since it is larger than the sum of its proper divisors (2783284985).

8349854943 is a wasteful number, since it uses less digits than its factorization.

8349854943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2783284984.

The product of its digits is 14929920, while the sum is 57.

The square root of 8349854943 is about 91377.5406924481. The cubic root of 8349854943 is about 2028.7396176118.

The spelling of 8349854943 in words is "eight billion, three hundred forty-nine million, eight hundred fifty-four thousand, nine hundred forty-three".