30820416469 has 4 divisors (see below), whose sum is σ = 31325669260. Its totient is φ = 30315163680.

The previous prime is 30820416457. The next prime is 30820416479. The reversal of 30820416469 is 96461402803.

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: 96461402803 = 19 ⋅5076915937.

It can be written as a sum of positive squares in 2 ways, for example, as 2010446244 + 28809970225 = 44838^2 + 169735^2 .

It is a cyclic number.

It is not a de Polignac number, because 30820416469 - 2²³ = 30812027861 is a prime.

It is a super-2 number, since 2×30820416469² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30820416409) 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 3 ways as a sum of consecutive naturals, for example, 252626304 + ... + 252626425.

It is an arithmetic number, because the mean of its divisors is an integer number (7831417315).

Almost surely, 2^30820416469 is an apocalyptic number.

It is an amenable number.

30820416469 is a deficient number, since it is larger than the sum of its proper divisors (505252791).

30820416469 is an equidigital number, since it uses as much as digits as its factorization.

30820416469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505252790.

The product of its (nonzero) digits is 248832, while the sum is 43.

The spelling of 30820416469 in words is "thirty billion, eight hundred twenty million, four hundred sixteen thousand, four hundred sixty-nine".