6834418774721 has 4 divisors (see below), whose sum is σ = 6902086287444. Its totient is φ = 6766751262000.

The previous prime is 6834418774697. The next prime is 6834418774751. The reversal of 6834418774721 is 1274778144386.

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 4966724818225 + 1867693956496 = 2228615^2 + 1366636^2 .

It is a cyclic number.

It is not a de Polignac number, because 6834418774721 - 2⁶ = 6834418774657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6834418774751) 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, 33833756210 + ... + 33833756411.

It is an arithmetic number, because the mean of its divisors is an integer number (1725521571861).

Almost surely, 2^{6834418774721} is an apocalyptic number.

It is an amenable number.

6834418774721 is a deficient number, since it is larger than the sum of its proper divisors (67667512723).

6834418774721 is a wasteful number, since it uses less digits than its factorization.

6834418774721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67667512722.

The product of its digits is 50577408, while the sum is 62.

The spelling of 6834418774721 in words is "six trillion, eight hundred thirty-four billion, four hundred eighteen million, seven hundred seventy-four thousand, seven hundred twenty-one".