6685876772011 has 4 divisors (see below), whose sum is σ = 6848946937224. Its totient is φ = 6522806606800.

The previous prime is 6685876771879. The next prime is 6685876772033. The reversal of 6685876772011 is 1102776785866.

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 6685876772011 - 2³⁷ = 6548437818539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6685876773011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81535082545 + ... + 81535082626.

It is an arithmetic number, because the mean of its divisors is an integer number (1712236734306).

Almost surely, 2^{6685876772011} is an apocalyptic number.

6685876772011 is a deficient number, since it is larger than the sum of its proper divisors (163070165213).

6685876772011 is a wasteful number, since it uses less digits than its factorization.

6685876772011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163070165212.

The product of its (nonzero) digits is 47416320, while the sum is 64.

The spelling of 6685876772011 in words is "six trillion, six hundred eighty-five billion, eight hundred seventy-six million, seven hundred seventy-two thousand, eleven".