209381349196 has 24 divisors (see below), whose sum is σ = 380248258320. Its totient is φ = 100761767232.

The previous prime is 209381349161. The next prime is 209381349227. The reversal of 209381349196 is 691943183902.

It is a happy number.

It is a super-2 number, since 2×209381349196² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2810250 + ... + 2883793.

It is an arithmetic number, because the mean of its divisors is an integer number (15843677430).

Almost surely, 2^209381349196 is an apocalyptic number.

It is an amenable number.

209381349196 is a deficient number, since it is larger than the sum of its proper divisors (170866909124).

209381349196 is a wasteful number, since it uses less digits than its factorization.

209381349196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5694393 (or 5694391 counting only the distinct ones).

The product of its (nonzero) digits is 2519424, while the sum is 55.

The spelling of 209381349196 in words is "two hundred nine billion, three hundred eighty-one million, three hundred forty-nine thousand, one hundred ninety-six".