4444888913 has 2 divisors, whose sum is σ = 4444888914. Its totient is φ = 4444888912.

The previous prime is 4444888879. The next prime is 4444888927. The reversal of 4444888913 is 3198884444.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3545368849 + 899520064 = 59543^2 + 29992^2 .

It is a cyclic number.

It is not a de Polignac number, because 4444888913 - 2⁶ = 4444888849 is a prime.

It is not a weakly prime, because it can be changed into another prime (4444888933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2222444456 + 2222444457.

It is an arithmetic number, because the mean of its divisors is an integer number (2222444457).

Almost surely, 2^4444888913 is an apocalyptic number.

It is an amenable number.

4444888913 is a deficient number, since it is larger than the sum of its proper divisors (1).

4444888913 is an equidigital number, since it uses as much as digits as its factorization.

4444888913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3538944, while the sum is 53.

The square root of 4444888913 is about 66670.0000974951. Note that the first 4 decimals coincide. The cubic root of 4444888913 is about 1644.1961887460.

The spelling of 4444888913 in words is "four billion, four hundred forty-four million, eight hundred eighty-eight thousand, nine hundred thirteen".