209773443134 has 16 divisors (see below), whose sum is σ = 335164622688. Its totient is φ = 98125792512.

The previous prime is 209773443101. The next prime is 209773443137. The reversal of 209773443134 is 431344377902.

It is a super-3 number, since 3×209773443134³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (209773443137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18466799 + ... + 18478154.

It is an arithmetic number, because the mean of its divisors is an integer number (20947788918).

Almost surely, 2^209773443134 is an apocalyptic number.

209773443134 is a deficient number, since it is larger than the sum of its proper divisors (125391179554).

209773443134 is a wasteful number, since it uses less digits than its factorization.

209773443134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36945139.

The product of its (nonzero) digits is 1524096, while the sum is 47.

The spelling of 209773443134 in words is "two hundred nine billion, seven hundred seventy-three million, four hundred forty-three thousand, one hundred thirty-four".