4494912857 has 2 divisors, whose sum is σ = 4494912858. Its totient is φ = 4494912856.

The previous prime is 4494912841. The next prime is 4494912887. The reversal of 4494912857 is 7582194944.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3271382416 + 1223530441 = 57196^2 + 34979^2 .

It is a cyclic number.

It is not a de Polignac number, because 4494912857 - 2⁴ = 4494912841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4494912799 and 4494912808.

It is not a weakly prime, because it can be changed into another prime (4494912887) 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, 2247456428 + 2247456429.

It is an arithmetic number, because the mean of its divisors is an integer number (2247456429).

Almost surely, 2^4494912857 is an apocalyptic number.

It is an amenable number.

4494912857 is a deficient number, since it is larger than the sum of its proper divisors (1).

4494912857 is an equidigital number, since it uses as much as digits as its factorization.

4494912857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2903040, while the sum is 53.

The square root of 4494912857 is about 67044.1112775760. Note that the first 3 decimals coincide. The cubic root of 4494912857 is about 1650.3412648270.

The spelling of 4494912857 in words is "four billion, four hundred ninety-four million, nine hundred twelve thousand, eight hundred fifty-seven".