135636464636531 has 16 divisors (see below), whose sum is σ = 137232587227680. Its totient is φ = 134045340979200.

The previous prime is 135636464636503. The next prime is 135636464636573.

135636464636531 is nontrivially palindromic in base 10.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135636464636531 is a prime.

It is a super-3 number, since 3×135636464636531³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135636464636581) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 866115785 + ... + 866272373.

It is an arithmetic number, because the mean of its divisors is an integer number (8577036701730).

Almost surely, 2^{135636464636531} is an apocalyptic number.

135636464636531 is a deficient number, since it is larger than the sum of its proper divisors (1596122591149).

135636464636531 is a wasteful number, since it uses less digits than its factorization.

135636464636531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172486.

The product of its digits is 251942400, while the sum is 62.

The spelling of 135636464636531 in words is "one hundred thirty-five trillion, six hundred thirty-six billion, four hundred sixty-four million, six hundred thirty-six thousand, five hundred thirty-one".