209466748504 has 24 divisors (see below), whose sum is σ = 425285671860. Its totient is φ = 96676960224.

The previous prime is 209466748499. The next prime is 209466748511. The reversal of 209466748504 is 405847664902.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 77464162 + ... + 77466865.

Almost surely, 2^209466748504 is an apocalyptic number.

It is an amenable number.

209466748504 is an abundant number, since it is smaller than the sum of its proper divisors (215818923356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

209466748504 is a wasteful number, since it uses less digits than its factorization.

209466748504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154931059 (or 154931042 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 55.

The spelling of 209466748504 in words is "two hundred nine billion, four hundred sixty-six million, seven hundred forty-eight thousand, five hundred four".