6853756376661 has 8 divisors (see below), whose sum is σ = 9210297283584. Its totient is φ = 4533193193760.

The previous prime is 6853756376659. The next prime is 6853756376681. The reversal of 6853756376661 is 1666736573586.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6853756376661 - 2¹ = 6853756376659 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6853756376641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8994430560 + ... + 8994431321.

It is an arithmetic number, because the mean of its divisors is an integer number (1151287160448).

Almost surely, 2^{6853756376661} is an apocalyptic number.

It is an amenable number.

6853756376661 is a deficient number, since it is larger than the sum of its proper divisors (2356540906923).

6853756376661 is a wasteful number, since it uses less digits than its factorization.

6853756376661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17988862011.

The product of its digits is 685843200, while the sum is 69.

The spelling of 6853756376661 in words is "six trillion, eight hundred fifty-three billion, seven hundred fifty-six million, three hundred seventy-six thousand, six hundred sixty-one".