3751444861 has 2 divisors, whose sum is σ = 3751444862. Its totient is φ = 3751444860.

The previous prime is 3751444841. The next prime is 3751444867. The reversal of 3751444861 is 1684441573.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2545202500 + 1206242361 = 50450^2 + 34731^2 .

It is a cyclic number.

It is not a de Polignac number, because 3751444861 - 2⁷ = 3751444733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3751444867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1875722430 + 1875722431.

It is an arithmetic number, because the mean of its divisors is an integer number (1875722431).

Almost surely, 2^3751444861 is an apocalyptic number.

It is an amenable number.

3751444861 is a deficient number, since it is larger than the sum of its proper divisors (1).

3751444861 is an equidigital number, since it uses as much as digits as its factorization.

3751444861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 322560, while the sum is 43.

The square root of 3751444861 is about 61249.0396741043. The cubic root of 3751444861 is about 1553.8157615365.

The spelling of 3751444861 in words is "three billion, seven hundred fifty-one million, four hundred forty-four thousand, eight hundred sixty-one".