4847851649 has 2 divisors, whose sum is σ = 4847851650. Its totient is φ = 4847851648.

The previous prime is 4847851639. The next prime is 4847851661. The reversal of 4847851649 is 9461587484.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4503081025 + 344770624 = 67105^2 + 18568^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4847851649 is a prime.

It is a super-2 number, since 2×4847851649² = 47003331221424038402, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4847851594 and 4847851603.

It is not a weakly prime, because it can be changed into another prime (4847851639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2423925824 + 2423925825.

It is an arithmetic number, because the mean of its divisors is an integer number (2423925825).

Almost surely, 2^4847851649 is an apocalyptic number.

It is an amenable number.

4847851649 is a deficient number, since it is larger than the sum of its proper divisors (1).

4847851649 is an equidigital number, since it uses as much as digits as its factorization.

4847851649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7741440, while the sum is 56.

The square root of 4847851649 is about 69626.5154161832. The cubic root of 4847851649 is about 1692.4523119073.

The spelling of 4847851649 in words is "four billion, eight hundred forty-seven million, eight hundred fifty-one thousand, six hundred forty-nine".