6813785119 has 4 divisors (see below), whose sum is σ = 6881248440. Its totient is φ = 6746321800.

The previous prime is 6813785107. The next prime is 6813785189. The reversal of 6813785119 is 9115873186.

It is a happy number.

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 6813785119 - 2¹⁷ = 6813654047 is a prime.

It is a super-2 number, since 2×6813785119² = 92855335295811688322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6813785189) 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, 33731509 + ... + 33731710.

It is an arithmetic number, because the mean of its divisors is an integer number (1720312110).

Almost surely, 2^6813785119 is an apocalyptic number.

6813785119 is a deficient number, since it is larger than the sum of its proper divisors (67463321).

6813785119 is a wasteful number, since it uses less digits than its factorization.

6813785119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67463320.

The product of its digits is 362880, while the sum is 49.

The square root of 6813785119 is about 82545.6547554140. The cubic root of 6813785119 is about 1895.8158264632.

The spelling of 6813785119 in words is "six billion, eight hundred thirteen million, seven hundred eighty-five thousand, one hundred nineteen".