6798070650721 has 9 divisors (see below), whose sum is σ = 7907980967571. Its totient is φ = 5826902056752.

The previous prime is 6798070650647. The next prime is 6798070650757. The reversal of 6798070650721 is 1270560708976.

The square root of 6798070650721 is 2607311.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 6594546960225 + 203523690496 = 2567985^2 + 451136^2 .

It is not a de Polignac number, because 6798070650721 - 2¹⁹ = 6798070126433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6798070650421) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 18064941 + ... + 18437413.

Almost surely, 2^{6798070650721} is an apocalyptic number.

6798070650721 is the 2607311-st square number.

6798070650721 is the 1303656-th centered octagonal number.

It is an amenable number.

6798070650721 is a deficient number, since it is larger than the sum of its proper divisors (1109910316850).

6798070650721 is an frugal number, since it uses more digits than its factorization.

6798070650721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744960 (or 372480 counting only the distinct ones).

The product of its (nonzero) digits is 8890560, while the sum is 58.

The spelling of 6798070650721 in words is "six trillion, seven hundred ninety-eight billion, seventy million, six hundred fifty thousand, seven hundred twenty-one".