8349785855 has 4 divisors (see below), whose sum is σ = 10019743032. Its totient is φ = 6679828680.

The previous prime is 8349785849. The next prime is 8349785869. The reversal of 8349785855 is 5585879438.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5585879438 = 2 ⋅2792939719.

It is not a de Polignac number, because 8349785855 - 2⁴ = 8349785839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 834978581 + ... + 834978590.

It is an arithmetic number, because the mean of its divisors is an integer number (2504935758).

Almost surely, 2^8349785855 is an apocalyptic number.

8349785855 is a deficient number, since it is larger than the sum of its proper divisors (1669957177).

8349785855 is a wasteful number, since it uses less digits than its factorization.

8349785855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1669957176.

The product of its digits is 48384000, while the sum is 62.

The square root of 8349785855 is about 91377.1626556658. The cubic root of 8349785855 is about 2028.7340222272.

The spelling of 8349785855 in words is "eight billion, three hundred forty-nine million, seven hundred eighty-five thousand, eight hundred fifty-five".