6887737742713 has 4 divisors (see below), whose sum is σ = 7292898786420. Its totient is φ = 6482576699008.

The previous prime is 6887737742701. The next prime is 6887737742731. The reversal of 6887737742713 is 3172477377886.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5383550781504 + 1504186961209 = 2320248^2 + 1226453^2 .

It is a cyclic number.

It is not a de Polignac number, because 6887737742713 - 2²⁹ = 6887200871801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6887737742213) 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, 202580521828 + ... + 202580521861.

It is an arithmetic number, because the mean of its divisors is an integer number (1823224696605).

Almost surely, 2^{6887737742713} is an apocalyptic number.

It is an amenable number.

6887737742713 is a deficient number, since it is larger than the sum of its proper divisors (405161043707).

6887737742713 is a wasteful number, since it uses less digits than its factorization.

6887737742713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405161043706.

The product of its digits is 464679936, while the sum is 70.

The spelling of 6887737742713 in words is "six trillion, eight hundred eighty-seven billion, seven hundred thirty-seven million, seven hundred forty-two thousand, seven hundred thirteen".