4444038413861 has 2 divisors, whose sum is σ = 4444038413862. Its totient is φ = 4444038413860.

The previous prime is 4444038413827. The next prime is 4444038413869. The reversal of 4444038413861 is 1683148304444.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3872984640100 + 571053773761 = 1967990^2 + 755681^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4444038413861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4444038413869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2222019206930 + 2222019206931.

It is an arithmetic number, because the mean of its divisors is an integer number (2222019206931).

Almost surely, 2^{4444038413861} is an apocalyptic number.

It is an amenable number.

4444038413861 is a deficient number, since it is larger than the sum of its proper divisors (1).

4444038413861 is an equidigital number, since it uses as much as digits as its factorization.

4444038413861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3538944, while the sum is 50.

The spelling of 4444038413861 in words is "four trillion, four hundred forty-four billion, thirty-eight million, four hundred thirteen thousand, eight hundred sixty-one".