135718510506 has 8 divisors (see below), whose sum is σ = 271437021024. Its totient is φ = 45239503500.

The previous prime is 135718510471. The next prime is 135718510511. The reversal of 135718510506 is 605015817531.

It is a happy number.

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

135718510506 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11309875870 + ... + 11309875881.

It is an arithmetic number, because the mean of its divisors is an integer number (33929627628).

Almost surely, 2^135718510506 is an apocalyptic number.

135718510506 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135718510506 is a wasteful number, since it uses less digits than its factorization.

135718510506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22619751756.

The product of its (nonzero) digits is 126000, while the sum is 42.

The spelling of 135718510506 in words is "one hundred thirty-five billion, seven hundred eighteen million, five hundred ten thousand, five hundred six".