849220425049 has 2 divisors, whose sum is σ = 849220425050. Its totient is φ = 849220425048.

The previous prime is 849220424993. The next prime is 849220425059. The reversal of 849220425049 is 940524022948.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 795250165824 + 53970259225 = 891768^2 + 232315^2 .

It is a cyclic number.

It is not a de Polignac number, because 849220425049 - 2¹⁵ = 849220392281 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 849220424993 and 849220425011.

It is not a weakly prime, because it can be changed into another prime (849220425059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 424610212524 + 424610212525.

It is an arithmetic number, because the mean of its divisors is an integer number (424610212525).

Almost surely, 2^849220425049 is an apocalyptic number.

It is an amenable number.

849220425049 is a deficient number, since it is larger than the sum of its proper divisors (1).

849220425049 is an equidigital number, since it uses as much as digits as its factorization.

849220425049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1658880, while the sum is 49.

The spelling of 849220425049 in words is "eight hundred forty-nine billion, two hundred twenty million, four hundred twenty-five thousand, forty-nine".