30820781483 has 4 divisors (see below), whose sum is σ = 30821524008. Its totient is φ = 30820038960.

The previous prime is 30820781473. The next prime is 30820781503. The reversal of 30820781483 is 38418702803.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 30820781483 - 2²⁰ = 30819732907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30820781473) 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, 305066 + ... + 393327.

It is an arithmetic number, because the mean of its divisors is an integer number (7705381002).

Almost surely, 2^30820781483 is an apocalyptic number.

30820781483 is a deficient number, since it is larger than the sum of its proper divisors (742525).

30820781483 is an equidigital number, since it uses as much as digits as its factorization.

30820781483 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742524.

The product of its (nonzero) digits is 258048, while the sum is 44.

The spelling of 30820781483 in words is "thirty billion, eight hundred twenty million, seven hundred eighty-one thousand, four hundred eighty-three".