4061491849 has 2 divisors, whose sum is σ = 4061491850. Its totient is φ = 4061491848.

The previous prime is 4061491787. The next prime is 4061491859. The reversal of 4061491849 is 9481941604.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2389254400 + 1672237449 = 48880^2 + 40893^2 .

It is a cyclic number.

It is not a de Polignac number, because 4061491849 - 2¹⁷ = 4061360777 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4061491799 and 4061491808.

It is not a weakly prime, because it can be changed into another prime (4061491859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2030745924 + 2030745925.

It is an arithmetic number, because the mean of its divisors is an integer number (2030745925).

Almost surely, 2^4061491849 is an apocalyptic number.

It is an amenable number.

4061491849 is a deficient number, since it is larger than the sum of its proper divisors (1).

4061491849 is an equidigital number, since it uses as much as digits as its factorization.

4061491849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 248832, while the sum is 46.

The square root of 4061491849 is about 63729.8348420895. The cubic root of 4061491849 is about 1595.4940734754.

The spelling of 4061491849 in words is "four billion, sixty-one million, four hundred ninety-one thousand, eight hundred forty-nine".