209533450677008 has 20 divisors (see below), whose sum is σ = 411688962952128. Its totient is φ = 103291137657120.

The previous prime is 209533450676951. The next prime is 209533450677017. The reversal of 209533450677008 is 800776054335902.

It is a happy number.

It is a super-2 number, since 2×209533450677008² (a number of 29 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92224228916 + ... + 92224231187.

Almost surely, 2^{209533450677008} is an apocalyptic number.

It is an amenable number.

209533450677008 is a deficient number, since it is larger than the sum of its proper divisors (202155512275120).

209533450677008 is a wasteful number, since it uses less digits than its factorization.

209533450677008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184448460182 (or 184448460176 counting only the distinct ones).

The product of its (nonzero) digits is 38102400, while the sum is 59.

The spelling of 209533450677008 in words is "two hundred nine trillion, five hundred thirty-three billion, four hundred fifty million, six hundred seventy-seven thousand, eight".