209134984980432 has 60 divisors (see below), whose sum is σ = 628471970177856. Its totient is φ = 59752852850880.

The previous prime is 209134984980403. The next prime is 209134984980499. The reversal of 209134984980432 is 234089489431902.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44458965544 + ... + 44458970247.

Almost surely, 2^{209134984980432} is an apocalyptic number.

It is an amenable number.

209134984980432 is an abundant number, since it is smaller than the sum of its proper divisors (419336985197424).

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

209134984980432 is a wasteful number, since it uses less digits than its factorization.

209134984980432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88917935816 (or 88917935803 counting only the distinct ones).

The product of its (nonzero) digits is 107495424, while the sum is 66.

The spelling of 209134984980432 in words is "two hundred nine trillion, one hundred thirty-four billion, nine hundred eighty-four million, nine hundred eighty thousand, four hundred thirty-two".