133727727717 has 12 divisors (see below), whose sum is σ = 193963779724. Its totient is φ = 88781892480.

The previous prime is 133727727709. The next prime is 133727727743. The reversal of 133727727717 is 717727727331.

133727727717 is a `hidden beast` number, since 1 + 337 + 27 + 7 + 277 + 17 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 85349285316 + 48378442401 = 292146^2 + 219951^2 .

It is not a de Polignac number, because 133727727717 - 2³ = 133727727709 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 (133727720717) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30824878 + ... + 30829215.

Almost surely, 2^133727727717 is an apocalyptic number.

It is an amenable number.

133727727717 is a deficient number, since it is larger than the sum of its proper divisors (60236052007).

133727727717 is a wasteful number, since it uses less digits than its factorization.

133727727717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61654340 (or 61654337 counting only the distinct ones).

The product of its digits is 4235364, while the sum is 54.

The spelling of 133727727717 in words is "one hundred thirty-three billion, seven hundred twenty-seven million, seven hundred twenty-seven thousand, seven hundred seventeen".