340081381817 has 4 divisors (see below), whose sum is σ = 340092329460. Its totient is φ = 340070434176.

The previous prime is 340081381811. The next prime is 340081381831. The reversal of 340081381817 is 718183180043.

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 62630568121 + 277450813696 = 250261^2 + 526736^2 .

It is a cyclic number.

It is not a de Polignac number, because 340081381817 - 2⁶ = 340081381753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340081381811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5427092 + ... + 5489397.

It is an arithmetic number, because the mean of its divisors is an integer number (85023082365).

Almost surely, 2^340081381817 is an apocalyptic number.

It is an amenable number.

340081381817 is a deficient number, since it is larger than the sum of its proper divisors (10947643).

340081381817 is a wasteful number, since it uses less digits than its factorization.

340081381817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10947642.

The product of its (nonzero) digits is 129024, while the sum is 44.

The spelling of 340081381817 in words is "three hundred forty billion, eighty-one million, three hundred eighty-one thousand, eight hundred seventeen".