30766212409 has 3 divisors (see below), whose sum is σ = 30766387813. Its totient is φ = 30766037006.

The previous prime is 30766212329. The next prime is 30766212413. The reversal of 30766212409 is 90421266703.

It is a happy number.

The square root of 30766212409 is 175403.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 30766212409 - 2⁹ = 30766211897 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30766212419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 87702 + ... + 263104.

Almost surely, 2^30766212409 is an apocalyptic number.

30766212409 is the 175403-rd square number.

30766212409 is the 87702-nd centered octagonal number.

It is an amenable number.

30766212409 is a deficient number, since it is larger than the sum of its proper divisors (175404).

30766212409 is an frugal number, since it uses more digits than its factorization.

30766212409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350806 (or 175403 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 40.

The spelling of 30766212409 in words is "thirty billion, seven hundred sixty-six million, two hundred twelve thousand, four hundred nine".