5444668945 has 16 divisors (see below), whose sum is σ = 6784074000. Its totient is φ = 4189873408.

The previous prime is 5444668927. The next prime is 5444668961. The reversal of 5444668945 is 5498664445.

It is a happy number.

It is a Cunningham number, because it is equal to 73788²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 74857104 + 5369811841 = 8652^2 + 73279^2 .

It is a cyclic number.

It is not a de Polignac number, because 5444668945 - 2⁹ = 5444668433 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30790 + ... + 108799.

It is an arithmetic number, because the mean of its divisors is an integer number (424004625).

Almost surely, 2^5444668945 is an apocalyptic number.

It is an amenable number.

5444668945 is a deficient number, since it is larger than the sum of its proper divisors (1339405055).

5444668945 is a wasteful number, since it uses less digits than its factorization.

5444668945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139892.

The product of its digits is 16588800, while the sum is 55.

The square root of 5444668945 is about 73788.0000067762. Note that the first 5 decimals coincide. The cubic root of 5444668945 is about 1759.2348758670.

The spelling of 5444668945 in words is "five billion, four hundred forty-four million, six hundred sixty-eight thousand, nine hundred forty-five".