1719904666213 has 16 divisors (see below), whose sum is σ = 1743893625600. Its totient is φ = 1696117054464.

The previous prime is 1719904666163. The next prime is 1719904666321. The reversal of 1719904666213 is 3126664099171.

It is a de Polignac number, because none of the positive numbers 2^k-1719904666213 is a prime.

It is a super-2 number, since 2×1719904666213² (a number of 25 digits) 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 (1719904666813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14405320 + ... + 14524222.

It is an arithmetic number, because the mean of its divisors is an integer number (108993351600).

Almost surely, 2^{1719904666213} is an apocalyptic number.

It is an amenable number.

1719904666213 is a deficient number, since it is larger than the sum of its proper divisors (23988959387).

1719904666213 is a wasteful number, since it uses less digits than its factorization.

1719904666213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119748.

The product of its (nonzero) digits is 2939328, while the sum is 55.

The spelling of 1719904666213 in words is "one trillion, seven hundred nineteen billion, nine hundred four million, six hundred sixty-six thousand, two hundred thirteen".