5439999999 has 16 divisors (see below), whose sum is σ = 8513566208. Its totient is φ = 3024555552.

The previous prime is 5439999989. The next prime is 5440000019. The reversal of 5439999999 is 9999999345.

It is a happy number.

It is not a de Polignac number, because 5439999999 - 2⁸ = 5439999743 is a prime.

5439999999 is a modest number, since divided by 99999 gives 54399 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 5439999999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5439999989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3499867 + ... + 3501420.

It is an arithmetic number, because the mean of its divisors is an integer number (532097888).

Almost surely, 2^5439999999 is an apocalyptic number.

5439999999 is a deficient number, since it is larger than the sum of its proper divisors (3073566209).

5439999999 is a wasteful number, since it uses less digits than its factorization.

5439999999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7001334.

The product of its digits is 286978140, while the sum is 75.

The square root of 5439999999 is about 73756.3556515640. The cubic root of 5439999999 is about 1758.7318687555.

The spelling of 5439999999 in words is "five billion, four hundred thirty-nine million, nine hundred ninety-nine thousand, nine hundred ninety-nine".