131577913867 has 2 divisors, whose sum is σ = 131577913868. Its totient is φ = 131577913866.

The previous prime is 131577913843. The next prime is 131577913927. The reversal of 131577913867 is 768319775131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131577913867 - 2³¹ = 129430430219 is a prime.

It is not a weakly prime, because it can be changed into another prime (131577911867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65788956933 + 65788956934.

It is an arithmetic number, because the mean of its divisors is an integer number (65788956934).

Almost surely, 2^131577913867 is an apocalyptic number.

131577913867 is a deficient number, since it is larger than the sum of its proper divisors (1).

131577913867 is an equidigital number, since it uses as much as digits as its factorization.

131577913867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6667920, while the sum is 58.

The spelling of 131577913867 in words is "one hundred thirty-one billion, five hundred seventy-seven million, nine hundred thirteen thousand, eight hundred sixty-seven".