4871850229781 has 2 divisors, whose sum is σ = 4871850229782. Its totient is φ = 4871850229780.

The previous prime is 4871850229759. The next prime is 4871850229823. The reversal of 4871850229781 is 1879220581784.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4855562089156 + 16288140625 = 2203534^2 + 127625^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4871850229781 is a prime.

It is a super-2 number, since 2×4871850229781² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4871850229381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2435925114890 + 2435925114891.

It is an arithmetic number, because the mean of its divisors is an integer number (2435925114891).

Almost surely, 2^{4871850229781} is an apocalyptic number.

It is an amenable number.

4871850229781 is a deficient number, since it is larger than the sum of its proper divisors (1).

4871850229781 is an equidigital number, since it uses as much as digits as its factorization.

4871850229781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18063360, while the sum is 62.

The spelling of 4871850229781 in words is "four trillion, eight hundred seventy-one billion, eight hundred fifty million, two hundred twenty-nine thousand, seven hundred eighty-one".