30820644494641 has 8 divisors (see below), whose sum is σ = 31946199949440. Its totient is φ = 29714663917488.

The previous prime is 30820644494597. The next prime is 30820644494659. The reversal of 30820644494641 is 14649444602803.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30820644494641 - 2²⁹ = 30820107623729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30820644494671) 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 7 ways as a sum of consecutive naturals, for example, 4893716206 + ... + 4893722503.

It is an arithmetic number, because the mean of its divisors is an integer number (3993274993680).

Almost surely, 2^{30820644494641} is an apocalyptic number.

It is an amenable number.

30820644494641 is a deficient number, since it is larger than the sum of its proper divisors (1125555454799).

30820644494641 is an equidigital number, since it uses as much as digits as its factorization.

30820644494641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9787438823.

The product of its (nonzero) digits is 15925248, while the sum is 55.

The spelling of 30820644494641 in words is "thirty trillion, eight hundred twenty billion, six hundred forty-four million, four hundred ninety-four thousand, six hundred forty-one".