4994225438857 has 2 divisors, whose sum is σ = 4994225438858. Its totient is φ = 4994225438856.

The previous prime is 4994225438849. The next prime is 4994225438941. The reversal of 4994225438857 is 7588345224994.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4939310671936 + 54914766921 = 2222456^2 + 234339^2 .

It is a cyclic number.

It is not a de Polignac number, because 4994225438857 - 2³ = 4994225438849 is a prime.

It is not a weakly prime, because it can be changed into another prime (4994225438057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2497112719428 + 2497112719429.

It is an arithmetic number, because the mean of its divisors is an integer number (2497112719429).

Almost surely, 2^{4994225438857} is an apocalyptic number.

It is an amenable number.

4994225438857 is a deficient number, since it is larger than the sum of its proper divisors (1).

4994225438857 is an equidigital number, since it uses as much as digits as its factorization.

4994225438857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 696729600, while the sum is 70.

The spelling of 4994225438857 in words is "four trillion, nine hundred ninety-four billion, two hundred twenty-five million, four hundred thirty-eight thousand, eight hundred fifty-seven".