1996419855109 has 16 divisors (see below), whose sum is σ = 2057134890240. Its totient is φ = 1936630396480.

The previous prime is 1996419855091. The next prime is 1996419855151. The reversal of 1996419855109 is 9015589146991.

It is not a de Polignac number, because 1996419855109 - 2²⁹ = 1995882984197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1996419852109) 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, 2540724 + ... + 3232354.

It is an arithmetic number, because the mean of its divisors is an integer number (128570930640).

Almost surely, 2^{1996419855109} is an apocalyptic number.

It is an amenable number.

1996419855109 is a deficient number, since it is larger than the sum of its proper divisors (60715035131).

1996419855109 is a wasteful number, since it uses less digits than its factorization.

1996419855109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692300.

The product of its (nonzero) digits is 31492800, while the sum is 67.

The spelling of 1996419855109 in words is "one trillion, nine hundred ninety-six billion, four hundred nineteen million, eight hundred fifty-five thousand, one hundred nine".