8069775340225 has 27 divisors (see below), whose sum is σ = 10085815706281. Its totient is φ = 6405062019200.

The previous prime is 8069775340219. The next prime is 8069775340247. The reversal of 8069775340225 is 5220435779608.

It is a happy number.

The square root of 8069775340225 is 2840735.

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 4312861488049 + 3756913852176 = 2076743^2 + 1938276^2 .

It is not a de Polignac number, because 8069775340225 - 2¹⁵ = 8069775307457 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8069775340225.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1860679257 + ... + 1860683593.

Almost surely, 2^{8069775340225} is an apocalyptic number.

8069775340225 is the 2840735-th square number.

8069775340225 is the 1420368-th centered octagonal number.

It is an amenable number.

8069775340225 is a deficient number, since it is larger than the sum of its proper divisors (2016040366056).

8069775340225 is an frugal number, since it uses more digits than its factorization.

8069775340225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8946 (or 4473 counting only the distinct ones).

The product of its (nonzero) digits is 25401600, while the sum is 58.

It can be divided in two parts, 8069775 and 340225, that added together give a square (8410000 = 2900²).

The spelling of 8069775340225 in words is "eight trillion, sixty-nine billion, seven hundred seventy-five million, three hundred forty thousand, two hundred twenty-five".