135213534660642 has 32 divisors (see below), whose sum is σ = 271049327747520. Its totient is φ = 44967583529280.

The previous prime is 135213534660571. The next prime is 135213534660667. The reversal of 135213534660642 is 246066435312531.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9678484 + ... + 19081407.

It is an arithmetic number, because the mean of its divisors is an integer number (8470291492110).

Almost surely, 2^{135213534660642} is an apocalyptic number.

135213534660642 is an abundant number, since it is smaller than the sum of its proper divisors (135835793086878).

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

135213534660642 is a wasteful number, since it uses less digits than its factorization.

135213534660642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28761698.

The product of its (nonzero) digits is 9331200, while the sum is 51.

The spelling of 135213534660642 in words is "one hundred thirty-five trillion, two hundred thirteen billion, five hundred thirty-four million, six hundred sixty thousand, six hundred forty-two".