135171779327 has 8 divisors (see below), whose sum is σ = 145617804864. Its totient is φ = 124732639008.

The previous prime is 135171779317. The next prime is 135171779333. The reversal of 135171779327 is 723977171531.

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 135171779327 - 2⁴ = 135171779311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135171779317) 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, 1680488 + ... + 1759085.

It is an arithmetic number, because the mean of its divisors is an integer number (18202225608).

Almost surely, 2^135171779327 is an apocalyptic number.

135171779327 is a deficient number, since it is larger than the sum of its proper divisors (10446025537).

135171779327 is a wasteful number, since it uses less digits than its factorization.

135171779327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3442609.

The product of its digits is 1944810, while the sum is 53.

The spelling of 135171779327 in words is "one hundred thirty-five billion, one hundred seventy-one million, seven hundred seventy-nine thousand, three hundred twenty-seven".