2143979342344 has 96 divisors (see below), whose sum is σ = 4779966228480. Its totient is φ = 898509459456.

The previous prime is 2143979342311. The next prime is 2143979342353. The reversal of 2143979342344 is 4432439793412.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 21192409 + ... + 21293335.

It is an arithmetic number, because the mean of its divisors is an integer number (49791314880).

Almost surely, 2^{2143979342344} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2143979342344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2389983114240).

2143979342344 is an abundant number, since it is smaller than the sum of its proper divisors (2635986886136).

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

2143979342344 is a wasteful number, since it uses less digits than its factorization.

2143979342344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102147 (or 102136 counting only the distinct ones).

The product of its digits is 15676416, while the sum is 55.

It can be divided in two parts, 214397934 and 2344, that added together give a triangular number (214400278 = T₂₀₇₀₇).

The spelling of 2143979342344 in words is "two trillion, one hundred forty-three billion, nine hundred seventy-nine million, three hundred forty-two thousand, three hundred forty-four".