6810849977999 has 4 divisors (see below), whose sum is σ = 6819919020000. Its totient is φ = 6801780936000.

The previous prime is 6810849977989. The next prime is 6810849978011. The reversal of 6810849977999 is 9997799480186.

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 6810849977999 - 2¹⁶ = 6810849912463 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6810849977999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6810849977929) 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, 4534519874 + ... + 4534521375.

It is an arithmetic number, because the mean of its divisors is an integer number (1704979755000).

Almost surely, 2^{6810849977999} is an apocalyptic number.

6810849977999 is a deficient number, since it is larger than the sum of its proper divisors (9069042001).

6810849977999 is an equidigital number, since it uses as much as digits as its factorization.

6810849977999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9069042000.

The product of its (nonzero) digits is 4444263936, while the sum is 86.

The spelling of 6810849977999 in words is "six trillion, eight hundred ten billion, eight hundred forty-nine million, nine hundred seventy-seven thousand, nine hundred ninety-nine".