2143680814079 has 16 divisors (see below), whose sum is σ = 2477775843648. Its totient is φ = 1816589279232.

The previous prime is 2143680814069. The next prime is 2143680814087. The reversal of 2143680814079 is 9704180863412.

It is a de Polignac number, because none of the positive numbers 2^k-2143680814079 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2143680814079.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143680814069) 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, 1009322 + ... + 2303495.

It is an arithmetic number, because the mean of its divisors is an integer number (154860990228).

Almost surely, 2^{2143680814079} is an apocalyptic number.

2143680814079 is a deficient number, since it is larger than the sum of its proper divisors (334095029569).

2143680814079 is an equidigital number, since it uses as much as digits as its factorization.

2143680814079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3313874.

The product of its (nonzero) digits is 2322432, while the sum is 53.

The spelling of 2143680814079 in words is "two trillion, one hundred forty-three billion, six hundred eighty million, eight hundred fourteen thousand, seventy-nine".