131886734208787 has 2 divisors, whose sum is σ = 131886734208788. Its totient is φ = 131886734208786.

The previous prime is 131886734208701. The next prime is 131886734208811. The reversal of 131886734208787 is 787802437688131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131886734208787 - 2¹⁵ = 131886734176019 is a prime.

It is a super-2 number, since 2×131886734208787² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (131886734208587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65943367104393 + 65943367104394.

It is an arithmetic number, because the mean of its divisors is an integer number (65943367104394).

Almost surely, 2^{131886734208787} is an apocalyptic number.

131886734208787 is a deficient number, since it is larger than the sum of its proper divisors (1).

131886734208787 is an equidigital number, since it uses as much as digits as its factorization.

131886734208787 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 606928896, while the sum is 73.

The spelling of 131886734208787 in words is "one hundred thirty-one trillion, eight hundred eighty-six billion, seven hundred thirty-four million, two hundred eight thousand, seven hundred eighty-seven".