209413992192 has 144 divisors (see below), whose sum is σ = 566382180000. Its totient is φ = 68681465856.

The previous prime is 209413992157. The next prime is 209413992217. The reversal of 209413992192 is 291299314902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12879684 + ... + 12895932.

Almost surely, 2^209413992192 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 209413992192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (283191090000).

209413992192 is an abundant number, since it is smaller than the sum of its proper divisors (356968187808).

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

209413992192 is a wasteful number, since it uses less digits than its factorization.

209413992192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16538 (or 16524 counting only the distinct ones).

The product of its (nonzero) digits is 629856, while the sum is 51.

The spelling of 209413992192 in words is "two hundred nine billion, four hundred thirteen million, nine hundred ninety-two thousand, one hundred ninety-two".