7131712268887 has 2 divisors, whose sum is σ = 7131712268888. Its totient is φ = 7131712268886.

The previous prime is 7131712268867. The next prime is 7131712268893. The reversal of 7131712268887 is 7888622171317.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7131712268887 is a prime.

It is a super-2 number, since 2×7131712268887² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7131712268827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3565856134443 + 3565856134444.

It is an arithmetic number, because the mean of its divisors is an integer number (3565856134444).

Almost surely, 2^{7131712268887} is an apocalyptic number.

7131712268887 is a deficient number, since it is larger than the sum of its proper divisors (1).

7131712268887 is an equidigital number, since it uses as much as digits as its factorization.

7131712268887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12644352, while the sum is 61.

The spelling of 7131712268887 in words is "seven trillion, one hundred thirty-one billion, seven hundred twelve million, two hundred sixty-eight thousand, eight hundred eighty-seven".