135688204463 has 16 divisors (see below), whose sum is σ = 156868669440. Its totient is φ = 114957750336.

The previous prime is 135688204451. The next prime is 135688204481. The reversal of 135688204463 is 364402886531.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 135688204463 - 2¹² = 135688200367 is a prime.

It is a super-2 number, since 2×135688204463² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135688204063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1847306 + ... + 1919352.

It is an arithmetic number, because the mean of its divisors is an integer number (9804291840).

Almost surely, 2^135688204463 is an apocalyptic number.

135688204463 is a deficient number, since it is larger than the sum of its proper divisors (21180464977).

135688204463 is an equidigital number, since it uses as much as digits as its factorization.

135688204463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75166.

The product of its (nonzero) digits is 3317760, while the sum is 50.

The spelling of 135688204463 in words is "one hundred thirty-five billion, six hundred eighty-eight million, two hundred four thousand, four hundred sixty-three".