135772329671 has 16 divisors (see below), whose sum is σ = 150906574368. Its totient is φ = 121120473600.

The previous prime is 135772329647. The next prime is 135772329673. The reversal of 135772329671 is 176923277531.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135772329671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135772329673) 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, 270950 + ... + 587331.

It is an arithmetic number, because the mean of its divisors is an integer number (9431660898).

Almost surely, 2^135772329671 is an apocalyptic number.

135772329671 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

135772329671 is a deficient number, since it is larger than the sum of its proper divisors (15134244697).

135772329671 is a wasteful number, since it uses less digits than its factorization.

135772329671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858562.

The product of its digits is 3333960, while the sum is 53.

The spelling of 135772329671 in words is "one hundred thirty-five billion, seven hundred seventy-two million, three hundred twenty-nine thousand, six hundred seventy-one".