70043826669961 has 45 divisors (see below), whose sum is σ = 76895692527351. Its totient is φ = 63788714235456.

The previous prime is 70043826669953. The next prime is 70043826669977. The reversal of 70043826669961 is 16996662834007.

The square root of 70043826669961 is 8369219.

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

70043826669961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 54532391006025 + 15511435663936 = 7384605^2 + 3938456^2 .

It is not a de Polignac number, because 70043826669961 - 2³ = 70043826669953 is a prime.

It is a super-3 number, since 3×70043826669961³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70043826669461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 654615202470 + ... + 654615202576.

Almost surely, 2^{70043826669961} is an apocalyptic number.

70043826669961 is the 8369219-th square number.

70043826669961 is the 4184610-th centered octagonal number.

It is an amenable number.

70043826669961 is a deficient number, since it is larger than the sum of its proper divisors (6851865857390).

70043826669961 is an frugal number, since it uses more digits than its factorization.

70043826669961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 141087744, while the sum is 67.

The spelling of 70043826669961 in words is "seventy trillion, forty-three billion, eight hundred twenty-six million, six hundred sixty-nine thousand, nine hundred sixty-one".