131715666262979 has 2 divisors, whose sum is σ = 131715666262980. Its totient is φ = 131715666262978.

The previous prime is 131715666262963. The next prime is 131715666262997. The reversal of 131715666262979 is 979262666517131.

Together with next prime (131715666262997) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is an emirp because it is prime and its reverse (979262666517131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131715666262979 - 2⁴ = 131715666262963 is a prime.

It is not a weakly prime, because it can be changed into another prime (131715666262909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65857833131489 + 65857833131490.

It is an arithmetic number, because the mean of its divisors is an integer number (65857833131490).

Almost surely, 2^{131715666262979} is an apocalyptic number.

131715666262979 is a deficient number, since it is larger than the sum of its proper divisors (1).

131715666262979 is an equidigital number, since it uses as much as digits as its factorization.

131715666262979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 308629440, while the sum is 71.

The spelling of 131715666262979 in words is "one hundred thirty-one trillion, seven hundred fifteen billion, six hundred sixty-six million, two hundred sixty-two thousand, nine hundred seventy-nine".