5234851521649 has 2 divisors, whose sum is σ = 5234851521650. Its totient is φ = 5234851521648.

The previous prime is 5234851521617. The next prime is 5234851521703. The reversal of 5234851521649 is 9461251584325.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2663446848049 + 2571404673600 = 1632007^2 + 1603560^2 .

It is a cyclic number.

It is not a de Polignac number, because 5234851521649 - 2⁵ = 5234851521617 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5234851521649.

It is not a weakly prime, because it can be changed into another prime (5234821521649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2617425760824 + 2617425760825.

It is an arithmetic number, because the mean of its divisors is an integer number (2617425760825).

Almost surely, 2^{5234851521649} is an apocalyptic number.

It is an amenable number.

5234851521649 is a deficient number, since it is larger than the sum of its proper divisors (1).

5234851521649 is an equidigital number, since it uses as much as digits as its factorization.

5234851521649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368000, while the sum is 55.

The spelling of 5234851521649 in words is "five trillion, two hundred thirty-four billion, eight hundred fifty-one million, five hundred twenty-one thousand, six hundred forty-nine".