1916671865304 has 128 divisors (see below), whose sum is σ = 5547995251200. Its totient is φ = 540464348160.

The previous prime is 1916671865239. The next prime is 1916671865309. The reversal of 1916671865304 is 4035681766191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1916671865309) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7970559 + ... + 8207505.

It is an arithmetic number, because the mean of its divisors is an integer number (43343712900).

Almost surely, 2^{1916671865304} is an apocalyptic number.

1916671865304 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1916671865304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2773997625600).

1916671865304 is an abundant number, since it is smaller than the sum of its proper divisors (3631323385896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1916671865304 is a wasteful number, since it uses less digits than its factorization.

1916671865304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237593 (or 237589 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 57.

The spelling of 1916671865304 in words is "one trillion, nine hundred sixteen billion, six hundred seventy-one million, eight hundred sixty-five thousand, three hundred four".