4608547420861 has 2 divisors, whose sum is σ = 4608547420862. Its totient is φ = 4608547420860.

The previous prime is 4608547420849. The next prime is 4608547420879. The reversal of 4608547420861 is 1680247458064.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4348517796100 + 260029624761 = 2085310^2 + 509931^2 .

It is a cyclic number.

It is not a de Polignac number, because 4608547420861 - 2⁹ = 4608547420349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4608547420361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2304273710430 + 2304273710431.

It is an arithmetic number, because the mean of its divisors is an integer number (2304273710431).

Almost surely, 2^{4608547420861} is an apocalyptic number.

It is an amenable number.

4608547420861 is a deficient number, since it is larger than the sum of its proper divisors (1).

4608547420861 is an equidigital number, since it uses as much as digits as its factorization.

4608547420861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10321920, while the sum is 55.

The spelling of 4608547420861 in words is "four trillion, six hundred eight billion, five hundred forty-seven million, four hundred twenty thousand, eight hundred sixty-one".