2146891983744 has 128 divisors (see below), whose sum is σ = 6034437895680. Its totient is φ = 674875013120.

The previous prime is 2146891983739. The next prime is 2146891983773. The reversal of 2146891983744 is 4473891986412.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1084767 + ... + 2338910.

It is an arithmetic number, because the mean of its divisors is an integer number (47144046060).

Almost surely, 2^{2146891983744} is an apocalyptic number.

2146891983744 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2146891983744 is an abundant number, since it is smaller than the sum of its proper divisors (3887545911936).

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

2146891983744 is a wasteful number, since it uses less digits than its factorization.

2146891983744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3423788 (or 3423776 counting only the distinct ones).

The product of its digits is 83607552, while the sum is 66.

The spelling of 2146891983744 in words is "two trillion, one hundred forty-six billion, eight hundred ninety-one million, nine hundred eighty-three thousand, seven hundred forty-four".