209376422012 has 24 divisors (see below), whose sum is σ = 368250664320. Its totient is φ = 104162814000.

The previous prime is 209376421997. The next prime is 209376422033. The reversal of 209376422012 is 210224673902.

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 7 ways as a sum of consecutive naturals, for example, 863039 + ... + 1078697.

It is an arithmetic number, because the mean of its divisors is an integer number (15343777680).

Almost surely, 2^209376422012 is an apocalyptic number.

It is an amenable number.

209376422012 is a deficient number, since it is larger than the sum of its proper divisors (158874242308).

209376422012 is a wasteful number, since it uses less digits than its factorization.

209376422012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216881 (or 216879 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 38.

The spelling of 209376422012 in words is "two hundred nine billion, three hundred seventy-six million, four hundred twenty-two thousand, twelve".