30825681332209 has 4 divisors (see below), whose sum is σ = 30835751796340. Its totient is φ = 30815610868080.

The previous prime is 30825681332153. The next prime is 30825681332263. The reversal of 30825681332209 is 90223318652803.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13397269011984 + 17428412320225 = 3660228^2 + 4174735^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30825681332209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30825681335209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5035227474 + ... + 5035233595.

It is an arithmetic number, because the mean of its divisors is an integer number (7708937949085).

Almost surely, 2^{30825681332209} is an apocalyptic number.

It is an amenable number.

30825681332209 is a deficient number, since it is larger than the sum of its proper divisors (10070464131).

30825681332209 is a wasteful number, since it uses less digits than its factorization.

30825681332209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10070464130.

The product of its (nonzero) digits is 3732480, while the sum is 52.

The spelling of 30825681332209 in words is "thirty trillion, eight hundred twenty-five billion, six hundred eighty-one million, three hundred thirty-two thousand, two hundred nine".