70765044289 has 9 divisors (see below), whose sum is σ = 73297352713. Its totient is φ = 68317421872.

The previous prime is 70765044281. The next prime is 70765044307. The reversal of 70765044289 is 98244056707.

The square root of 70765044289 is 266017.

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 22456521025 + 48308523264 = 149855^2 + 219792^2 .

It is not a de Polignac number, because 70765044289 - 2³ = 70765044281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70765044281) 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, 7709907 + ... + 7719079.

Almost surely, 2^70765044289 is an apocalyptic number.

70765044289 is the 266017-th square number.

70765044289 is the 133009-th centered octagonal number.

It is an amenable number.

70765044289 is a deficient number, since it is larger than the sum of its proper divisors (2532308424).

70765044289 is an frugal number, since it uses more digits than its factorization.

70765044289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18404 (or 9202 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 52.

The spelling of 70765044289 in words is "seventy billion, seven hundred sixty-five million, forty-four thousand, two hundred eighty-nine".