209076982269 has 16 divisors (see below), whose sum is σ = 280365321600. Its totient is φ = 138586956480.

The previous prime is 209076982267. The next prime is 209076982297. The reversal of 209076982269 is 962289670902.

It is a happy number.

It is not a de Polignac number, because 209076982269 - 2¹ = 209076982267 is a prime.

It is a super-2 number, since 2×209076982269² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (209076982267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2895999 + ... + 2967315.

It is an arithmetic number, because the mean of its divisors is an integer number (17522832600).

Almost surely, 2^209076982269 is an apocalyptic number.

It is an amenable number.

209076982269 is a deficient number, since it is larger than the sum of its proper divisors (71288339331).

209076982269 is a wasteful number, since it uses less digits than its factorization.

209076982269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76900.

The product of its (nonzero) digits is 11757312, while the sum is 60.

The spelling of 209076982269 in words is "two hundred nine billion, seventy-six million, nine hundred eighty-two thousand, two hundred sixty-nine".