135688410623 has 8 divisors (see below), whose sum is σ = 140142389328. Its totient is φ = 131304573504.

The previous prime is 135688410563. The next prime is 135688410647. The reversal of 135688410623 is 326014886531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 135688410623 - 2²⁴ = 135671633407 is a prime.

It is a super-2 number, since 2×135688410623² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135688410023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17531465 + ... + 17539202.

It is an arithmetic number, because the mean of its divisors is an integer number (17517798666).

Almost surely, 2^135688410623 is an apocalyptic number.

135688410623 is a deficient number, since it is larger than the sum of its proper divisors (4453978705).

135688410623 is an equidigital number, since it uses as much as digits as its factorization.

135688410623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35070793.

The product of its (nonzero) digits is 829440, while the sum is 47.

The spelling of 135688410623 in words is "one hundred thirty-five billion, six hundred eighty-eight million, four hundred ten thousand, six hundred twenty-three".