4099855649 has 2 divisors, whose sum is σ = 4099855650. Its totient is φ = 4099855648.

The previous prime is 4099855603. The next prime is 4099855667. The reversal of 4099855649 is 9465589904.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3525390625 + 574465024 = 59375^2 + 23968^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4099855649 is a prime.

It is a super-2 number, since 2×4099855649² = 33617632685274422402, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4099855349) 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, 2049927824 + 2049927825.

It is an arithmetic number, because the mean of its divisors is an integer number (2049927825).

Almost surely, 2^4099855649 is an apocalyptic number.

It is an amenable number.

4099855649 is a deficient number, since it is larger than the sum of its proper divisors (1).

4099855649 is an equidigital number, since it uses as much as digits as its factorization.

4099855649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13996800, while the sum is 59.

The square root of 4099855649 is about 64030.1151724718. The cubic root of 4099855649 is about 1600.5018801864.

The spelling of 4099855649 in words is "four billion, ninety-nine million, eight hundred fifty-five thousand, six hundred forty-nine".