30816399227 has 4 divisors (see below), whose sum is σ = 30825538800. Its totient is φ = 30807259656.

The previous prime is 30816399203. The next prime is 30816399247. The reversal of 30816399227 is 72299361803.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72299361803 = 5851 ⋅12356753.

It is a cyclic number.

It is not a de Polignac number, because 30816399227 - 2¹⁰ = 30816398203 is a prime.

It is a super-2 number, since 2×30816399227² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30816399247) 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 3 ways as a sum of consecutive naturals, for example, 4564727 + ... + 4571472.

It is an arithmetic number, because the mean of its divisors is an integer number (7706384700).

Almost surely, 2^30816399227 is an apocalyptic number.

30816399227 is a deficient number, since it is larger than the sum of its proper divisors (9139573).

30816399227 is an equidigital number, since it uses as much as digits as its factorization.

30816399227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9139572.

The product of its (nonzero) digits is 979776, while the sum is 50.

The spelling of 30816399227 in words is "thirty billion, eight hundred sixteen million, three hundred ninety-nine thousand, two hundred twenty-seven".