182288864209 has 9 divisors (see below), whose sum is σ = 184023562737. Its totient is φ = 180570378384.

The previous prime is 182288864203. The next prime is 182288864221. The reversal of 182288864209 is 902468882281.

The square root of 182288864209 is 426953.

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

It can be written as a sum of positive squares in 4 ways, for example, as 47652707025 + 134636157184 = 218295^2 + 366928^2 .

It is not a de Polignac number, because 182288864209 - 2³ = 182288864201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (182288864201) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 46535919 + ... + 46539835.

Almost surely, 2^182288864209 is an apocalyptic number.

182288864209 is the 426953-rd square number.

182288864209 is the 213477-th centered octagonal number.

It is an amenable number.

182288864209 is a deficient number, since it is larger than the sum of its proper divisors (1734698528).

182288864209 is an frugal number, since it uses more digits than its factorization.

182288864209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8052 (or 4026 counting only the distinct ones).

The product of its (nonzero) digits is 7077888, while the sum is 58.

The spelling of 182288864209 in words is "one hundred eighty-two billion, two hundred eighty-eight million, eight hundred sixty-four thousand, two hundred nine".