2106684719 has 4 divisors (see below), whose sum is σ = 2106847080. Its totient is φ = 2106522360.

The previous prime is 2106684709. The next prime is 2106684721. The reversal of 2106684719 is 9174866012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2106684719 - 2²⁴ = 2089907503 is a prime.

It is a super-2 number, since 2×2106684719² = 8876241010536217922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2106684719.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2106684709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59849 + ... + 88290.

It is an arithmetic number, because the mean of its divisors is an integer number (526711770).

Almost surely, 2^2106684719 is an apocalyptic number.

2106684719 is a deficient number, since it is larger than the sum of its proper divisors (162361).

2106684719 is a wasteful number, since it uses less digits than its factorization.

2106684719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162360.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 2106684719 is about 45898.6352629357. The cubic root of 2106684719 is about 1281.9365054389.

The spelling of 2106684719 in words is "two billion, one hundred six million, six hundred eighty-four thousand, seven hundred nineteen".