209892234324964 has 27 divisors (see below), whose sum is σ = 367674067683363. Its totient is φ = 104842602846072.

The previous prime is 209892234324961. The next prime is 209892234324967. The reversal of 209892234324964 is 469423432298902.

The square root of 209892234324964 is 14487658.

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

It is an interprime number because it is at equal distance from previous prime (209892234324961) and next prime (209892234324967).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 209892234324964.

It is not an unprimeable number, because it can be changed into a prime (209892234324961) 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, 35436808507 + ... + 35436814429.

Almost surely, 2^{209892234324964} is an apocalyptic number.

209892234324964 is the 14487658-th square number.

It is an amenable number.

209892234324964 is a deficient number, since it is larger than the sum of its proper divisors (157781833358399).

209892234324964 is an frugal number, since it uses more digits than its factorization.

209892234324964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14296 (or 7148 counting only the distinct ones).

The product of its (nonzero) digits is 322486272, while the sum is 67.

The spelling of 209892234324964 in words is "two hundred nine trillion, eight hundred ninety-two billion, two hundred thirty-four million, three hundred twenty-four thousand, nine hundred sixty-four".