2106726919 has 16 divisors (see below), whose sum is σ = 2349720576. Its totient is φ = 1872402400.

The previous prime is 2106726911. The next prime is 2106726967. The reversal of 2106726919 is 9196276012.

It is a happy number.

It is not a de Polignac number, because 2106726919 - 2³ = 2106726911 is a prime.

It is a super-2 number, since 2×2106726919² = 8876596622478465122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2106726911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 658614 + ... + 661804.

It is an arithmetic number, because the mean of its divisors is an integer number (146857536).

Almost surely, 2^2106726919 is an apocalyptic number.

2106726919 is a deficient number, since it is larger than the sum of its proper divisors (242993657).

2106726919 is a wasteful number, since it uses less digits than its factorization.

2106726919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4526.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 2106726919 is about 45899.0949692911. The cubic root of 2106726919 is about 1281.9450650743.

The spelling of 2106726919 in words is "two billion, one hundred six million, seven hundred twenty-six thousand, nine hundred nineteen".