8343149779 has 4 divisors (see below), whose sum is σ = 8457439576. Its totient is φ = 8228859984.

The previous prime is 8343149669. The next prime is 8343149803. The reversal of 8343149779 is 9779413438.

8343149779 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 8343149779 - 2⁹ = 8343149267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8343119779) 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, 57144789 + ... + 57144934.

It is an arithmetic number, because the mean of its divisors is an integer number (2114359894).

Almost surely, 2^8343149779 is an apocalyptic number.

8343149779 is a deficient number, since it is larger than the sum of its proper divisors (114289797).

8343149779 is a wasteful number, since it uses less digits than its factorization.

8343149779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114289796.

The product of its digits is 4572288, while the sum is 55.

The square root of 8343149779 is about 91340.8439801166. The cubic root of 8343149779 is about 2028.1964275495.

The spelling of 8343149779 in words is "eight billion, three hundred forty-three million, one hundred forty-nine thousand, seven hundred seventy-nine".