6849233909 has 4 divisors (see below), whose sum is σ = 7827695904. Its totient is φ = 5870771916.

The previous prime is 6849233879. The next prime is 6849233929. The reversal of 6849233909 is 9093329486.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6849233909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6849233929) 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, 489230987 + ... + 489231000.

It is an arithmetic number, because the mean of its divisors is an integer number (1956923976).

Almost surely, 2^6849233909 is an apocalyptic number.

It is an amenable number.

6849233909 is a deficient number, since it is larger than the sum of its proper divisors (978461995).

6849233909 is an equidigital number, since it uses as much as digits as its factorization.

6849233909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 978461994.

The product of its (nonzero) digits is 2519424, while the sum is 53.

The square root of 6849233909 is about 82760.0985318408. The cubic root of 6849233909 is about 1899.0978088851.

The spelling of 6849233909 in words is "six billion, eight hundred forty-nine million, two hundred thirty-three thousand, nine hundred nine".