5440368919 has 2 divisors, whose sum is σ = 5440368920. Its totient is φ = 5440368918.

The previous prime is 5440368881. The next prime is 5440368931. The reversal of 5440368919 is 9198630445.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5440368919 is a prime.

It is a super-3 number, since 3×5440368919³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5440368119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2720184459 + 2720184460.

It is an arithmetic number, because the mean of its divisors is an integer number (2720184460).

Almost surely, 2^5440368919 is an apocalyptic number.

5440368919 is a deficient number, since it is larger than the sum of its proper divisors (1).

5440368919 is an equidigital number, since it uses as much as digits as its factorization.

5440368919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 933120, while the sum is 49.

The square root of 5440368919 is about 73758.8565461803. The cubic root of 5440368919 is about 1758.7716246804.

The spelling of 5440368919 in words is "five billion, four hundred forty million, three hundred sixty-eight thousand, nine hundred nineteen".