131577911867 has 2 divisors, whose sum is σ = 131577911868. Its totient is φ = 131577911866.

The previous prime is 131577911831. The next prime is 131577911887. The reversal of 131577911867 is 768119775131.

It is a strong prime.

It is an emirp because it is prime and its reverse (768119775131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131577911867 - 2²⁴ = 131561134651 is a prime.

It is not a weakly prime, because it can be changed into another prime (131577911887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65788955933 + 65788955934.

It is an arithmetic number, because the mean of its divisors is an integer number (65788955934).

Almost surely, 2^131577911867 is an apocalyptic number.

131577911867 is a deficient number, since it is larger than the sum of its proper divisors (1).

131577911867 is an equidigital number, since it uses as much as digits as its factorization.

131577911867 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2222640, while the sum is 56.

The spelling of 131577911867 in words is "one hundred thirty-one billion, five hundred seventy-seven million, nine hundred eleven thousand, eight hundred sixty-seven".