8349854945 has 4 divisors (see below), whose sum is σ = 10019825940. Its totient is φ = 6679883952.

The previous prime is 8349854927. The next prime is 8349854977. The reversal of 8349854945 is 5494589438.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5585619169 + 2764235776 = 74737^2 + 52576^2 .

It is a cyclic number.

It is not a de Polignac number, because 8349854945 - 2⁶ = 8349854881 is a prime.

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

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 834985490 + ... + 834985499.

It is an arithmetic number, because the mean of its divisors is an integer number (2504956485).

Almost surely, 2^8349854945 is an apocalyptic number.

It is an amenable number.

8349854945 is a deficient number, since it is larger than the sum of its proper divisors (1669970995).

8349854945 is a wasteful number, since it uses less digits than its factorization.

8349854945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1669970994.

The product of its digits is 24883200, while the sum is 59.

The square root of 8349854945 is about 91377.5407033917. The cubic root of 8349854945 is about 2028.7396177737.

The spelling of 8349854945 in words is "eight billion, three hundred forty-nine million, eight hundred fifty-four thousand, nine hundred forty-five".