2680235791349 has 4 divisors (see below), whose sum is σ = 2682881632236. Its totient is φ = 2677589950464.

The previous prime is 2680235791339. The next prime is 2680235791357. The reversal of 2680235791349 is 9431975320862.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 111646198225 + 2568589593124 = 334135^2 + 1602682^2 .

It is a cyclic number.

It is not a de Polignac number, because 2680235791349 - 2²⁸ = 2679967355893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2680235791319) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1322918924 + ... + 1322920949.

It is an arithmetic number, because the mean of its divisors is an integer number (670720408059).

It is a 2-persistent number, because it is pandigital, and so is 2⋅2680235791349 = 5360471582698, but 3⋅2680235791349 = 8040707374047 is not.

Almost surely, 2^{2680235791349} is an apocalyptic number.

It is an amenable number.

2680235791349 is a deficient number, since it is larger than the sum of its proper divisors (2645840887).

2680235791349 is a wasteful number, since it uses less digits than its factorization.

2680235791349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2645840886.

The product of its (nonzero) digits is 19595520, while the sum is 59.

The spelling of 2680235791349 in words is "two trillion, six hundred eighty billion, two hundred thirty-five million, seven hundred ninety-one thousand, three hundred forty-nine".