131886363757 has 4 divisors (see below), whose sum is σ = 134048435356. Its totient is φ = 129724292160.

The previous prime is 131886363751. The next prime is 131886363781. The reversal of 131886363757 is 757363688131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 757363688131 = 216127 ⋅3504253.

It can be written as a sum of positive squares in 2 ways, for example, as 66884821641 + 65001542116 = 258621^2 + 254954^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131886363757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131886363751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1081035708 + ... + 1081035829.

It is an arithmetic number, because the mean of its divisors is an integer number (33512108839).

Almost surely, 2^131886363757 is an apocalyptic number.

It is an amenable number.

131886363757 is a deficient number, since it is larger than the sum of its proper divisors (2162071599).

131886363757 is an equidigital number, since it uses as much as digits as its factorization.

131886363757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2162071598.

The product of its digits is 15240960, while the sum is 58.

The spelling of 131886363757 in words is "one hundred thirty-one billion, eight hundred eighty-six million, three hundred sixty-three thousand, seven hundred fifty-seven".