6871992791791 has 16 divisors (see below), whose sum is σ = 7052874716160. Its totient is φ = 6693691586400.

The previous prime is 6871992791789. The next prime is 6871992791821. The reversal of 6871992791791 is 1971972991786.

It is a cyclic number.

It is not a de Polignac number, because 6871992791791 - 2¹ = 6871992791789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6871992791711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3848926 + ... + 5343988.

It is an arithmetic number, because the mean of its divisors is an integer number (440804669760).

Almost surely, 2^{6871992791791} is an apocalyptic number.

6871992791791 is a deficient number, since it is larger than the sum of its proper divisors (180881924369).

6871992791791 is a wasteful number, since it uses less digits than its factorization.

6871992791791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1495926.

The product of its digits is 216040608, while the sum is 76.

The spelling of 6871992791791 in words is "six trillion, eight hundred seventy-one billion, nine hundred ninety-two million, seven hundred ninety-one thousand, seven hundred ninety-one".