135644609210 has 32 divisors (see below), whose sum is σ = 267318323712. Its totient is φ = 49147231680.

The previous prime is 135644609209. The next prime is 135644609213. The reversal of 135644609210 is 12906446531.

It is not an unprimeable number, because it can be changed into a prime (135644609213) 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, 2195402 + ... + 2256341.

It is an arithmetic number, because the mean of its divisors is an integer number (8353697616).

Almost surely, 2^135644609210 is an apocalyptic number.

135644609210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135644609210 is a deficient number, since it is larger than the sum of its proper divisors (131673714502).

135644609210 is a wasteful number, since it uses less digits than its factorization.

135644609210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4452038.

The product of its (nonzero) digits is 155520, while the sum is 41.

The spelling of 135644609210 in words is "one hundred thirty-five billion, six hundred forty-four million, six hundred nine thousand, two hundred ten".