5440991239 has 2 divisors, whose sum is σ = 5440991240. Its totient is φ = 5440991238.

The previous prime is 5440991173. The next prime is 5440991243. The reversal of 5440991239 is 9321990445.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5440991239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5440991249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2720495619 + 2720495620.

It is an arithmetic number, because the mean of its divisors is an integer number (2720495620).

Almost surely, 2^5440991239 is an apocalyptic number.

5440991239 is a deficient number, since it is larger than the sum of its proper divisors (1).

5440991239 is an equidigital number, since it uses as much as digits as its factorization.

5440991239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 349920, while the sum is 46.

The square root of 5440991239 is about 73763.0750375823. The cubic root of 5440991239 is about 1758.8386836760.

The spelling of 5440991239 in words is "five billion, four hundred forty million, nine hundred ninety-one thousand, two hundred thirty-nine".