131768842437 has 6 divisors (see below), whose sum is σ = 190332772422. Its totient is φ = 87845894952.

The previous prime is 131768842417. The next prime is 131768842453. The reversal of 131768842437 is 734248867131.

131768842437 is a `hidden beast` number, since 1 + 317 + 6 + 8 + 84 + 243 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 131764644036 + 4198401 = 362994^2 + 2049^2 .

It is not a de Polignac number, because 131768842437 - 2¹⁶ = 131768776901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131768842417) 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 5 ways as a sum of consecutive naturals, for example, 7320491238 + ... + 7320491255.

It is an arithmetic number, because the mean of its divisors is an integer number (31722128737).

Almost surely, 2^131768842437 is an apocalyptic number.

It is an amenable number.

131768842437 is a deficient number, since it is larger than the sum of its proper divisors (58563929985).

131768842437 is a wasteful number, since it uses less digits than its factorization.

131768842437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14640982499 (or 14640982496 counting only the distinct ones).

The product of its digits is 5419008, while the sum is 54.

The spelling of 131768842437 in words is "one hundred thirty-one billion, seven hundred sixty-eight million, eight hundred forty-two thousand, four hundred thirty-seven".