7881246716131 has 2 divisors, whose sum is σ = 7881246716132. Its totient is φ = 7881246716130.

The previous prime is 7881246716099. The next prime is 7881246716143. The reversal of 7881246716131 is 1316176421887.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (1316176421887) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7881246716131 - 2⁵ = 7881246716099 is a prime.

It is a super-2 number, since 2×7881246716131² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7881246716191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3940623358065 + 3940623358066.

It is an arithmetic number, because the mean of its divisors is an integer number (3940623358066).

Almost surely, 2^{7881246716131} is an apocalyptic number.

7881246716131 is a deficient number, since it is larger than the sum of its proper divisors (1).

7881246716131 is an equidigital number, since it uses as much as digits as its factorization.

7881246716131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2709504, while the sum is 55.

The spelling of 7881246716131 in words is "seven trillion, eight hundred eighty-one billion, two hundred forty-six million, seven hundred sixteen thousand, one hundred thirty-one".