48816578857 has 2 divisors, whose sum is σ = 48816578858. Its totient is φ = 48816578856.

The previous prime is 48816578843. The next prime is 48816578891. The reversal of 48816578857 is 75887561884.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48585417241 + 231161616 = 220421^2 + 15204^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-48816578857 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 48816578792 and 48816578801.

It is not a weakly prime, because it can be changed into another prime (48816578807) 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, 24408289428 + 24408289429.

It is an arithmetic number, because the mean of its divisors is an integer number (24408289429).

Almost surely, 2^48816578857 is an apocalyptic number.

It is an amenable number.

48816578857 is a deficient number, since it is larger than the sum of its proper divisors (1).

48816578857 is an equidigital number, since it uses as much as digits as its factorization.

48816578857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120422400, while the sum is 67.

The spelling of 48816578857 in words is "forty-eight billion, eight hundred sixteen million, five hundred seventy-eight thousand, eight hundred fifty-seven".