706455379081 has 9 divisors (see below), whose sum is σ = 711354615573. Its totient is φ = 701589672480.

The previous prime is 706455379067. The next prime is 706455379093. The reversal of 706455379081 is 180973554607.

The square root of 706455379081 is 840509.

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

It can be written as a sum of positive squares in 4 ways, for example, as 40827839481 + 665627539600 = 202059^2 + 815860^2 .

It is not a de Polignac number, because 706455379081 - 2⁹ = 706455378569 is a prime.

It is a super-2 number, since 2×706455379081² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (706455379001) 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 8 ways as a sum of consecutive naturals, for example, 125233021 + ... + 125238661.

Almost surely, 2^706455379081 is an apocalyptic number.

706455379081 is the 840509-th square number.

706455379081 is the 420255-th centered octagonal number.

It is an amenable number.

706455379081 is a deficient number, since it is larger than the sum of its proper divisors (4899236492).

706455379081 is an frugal number, since it uses more digits than its factorization.

706455379081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11580 (or 5790 counting only the distinct ones).

The product of its (nonzero) digits is 6350400, while the sum is 55.

The spelling of 706455379081 in words is "seven hundred six billion, four hundred fifty-five million, three hundred seventy-nine thousand, eighty-one".