135686645614731 has 16 divisors (see below), whose sum is σ = 182185754019840. Its totient is φ = 89824332898080.

The previous prime is 135686645614693. The next prime is 135686645614757. The reversal of 135686645614731 is 137416546686531.

It is not a de Polignac number, because 135686645614731 - 2¹⁹ = 135686645090443 is a prime.

It is a super-2 number, since 2×135686645614731² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (135686645654731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 209979736 + ... + 210624933.

It is an arithmetic number, because the mean of its divisors is an integer number (11386609626240).

Almost surely, 2^{135686645614731} is an apocalyptic number.

135686645614731 is a deficient number, since it is larger than the sum of its proper divisors (46499108405109).

135686645614731 is a wasteful number, since it uses less digits than its factorization.

135686645614731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420605426.

The product of its digits is 261273600, while the sum is 66.

The spelling of 135686645614731 in words is "one hundred thirty-five trillion, six hundred eighty-six billion, six hundred forty-five million, six hundred fourteen thousand, seven hundred thirty-one".