3819389797891 has 8 divisors (see below), whose sum is σ = 3951129737520. Its totient is φ = 3687652314528.

The previous prime is 3819389797871. The next prime is 3819389797897. The reversal of 3819389797891 is 1987979839183.

3819389797891 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3819389797891 - 2⁵ = 3819389797859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3819389797897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2888100 + ... + 3997486.

It is an arithmetic number, because the mean of its divisors is an integer number (493891217190).

Almost surely, 2^{3819389797891} is an apocalyptic number.

3819389797891 is a deficient number, since it is larger than the sum of its proper divisors (131739939629).

3819389797891 is a wasteful number, since it uses less digits than its factorization.

3819389797891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1228133.

The product of its digits is 1481421312, while the sum is 82.

The spelling of 3819389797891 in words is "three trillion, eight hundred nineteen billion, three hundred eighty-nine million, seven hundred ninety-seven thousand, eight hundred ninety-one".