206731174329 has 27 divisors (see below), whose sum is σ = 308618186799. Its totient is φ = 133347670560.

The previous prime is 206731174303. The next prime is 206731174339. The reversal of 206731174329 is 923471137602.

The square root of 206731174329 is 454677.

It is a perfect power (a square), and thus also a powerful number.

206731174329 is a `hidden beast` number, since 2 + 0 + 6 + 7 + 311 + 7 + 4 + 329 = 666.

It can be written as a sum of positive squares in only one way, i.e., 144610596729 + 62120577600 = 380277^2 + 249240^2 .

It is not a de Polignac number, because 206731174329 - 2⁵ = 206731174297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (206731174339) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 42282517 + ... + 42287405.

Almost surely, 2^206731174329 is an apocalyptic number.

206731174329 is the 454677-th square number.

206731174329 is the 227339-th centered octagonal number.

It is an amenable number.

206731174329 is a deficient number, since it is larger than the sum of its proper divisors (101887012470).

206731174329 is an frugal number, since it uses more digits than its factorization.

206731174329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9846 (or 4923 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The spelling of 206731174329 in words is "two hundred six billion, seven hundred thirty-one million, one hundred seventy-four thousand, three hundred twenty-nine".