48542457617 has 2 divisors, whose sum is σ = 48542457618. Its totient is φ = 48542457616.

The previous prime is 48542457589. The next prime is 48542457647. The reversal of 48542457617 is 71675424584.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27373371601 + 21169086016 = 165449^2 + 145496^2 .

It is a cyclic number.

It is not a de Polignac number, because 48542457617 - 2³⁰ = 47468715793 is a prime.

It is not a weakly prime, because it can be changed into another prime (48542457647) 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 as a sum of consecutive naturals, namely, 24271228808 + 24271228809.

It is an arithmetic number, because the mean of its divisors is an integer number (24271228809).

Almost surely, 2^48542457617 is an apocalyptic number.

It is an amenable number.

48542457617 is a deficient number, since it is larger than the sum of its proper divisors (1).

48542457617 is an equidigital number, since it uses as much as digits as its factorization.

48542457617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7526400, while the sum is 53.

The spelling of 48542457617 in words is "forty-eight billion, five hundred forty-two million, four hundred fifty-seven thousand, six hundred seventeen".