2539459439 has 8 divisors (see below), whose sum is σ = 2933279568. Its totient is φ = 2172799360.

The previous prime is 2539459427. The next prime is 2539459477. The reversal of 2539459439 is 9349549352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2539459439 - 2²⁴ = 2522682223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2539459639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6789812 + ... + 6790185.

It is an arithmetic number, because the mean of its divisors is an integer number (366659946).

Almost surely, 2^2539459439 is an apocalyptic number.

2539459439 is a deficient number, since it is larger than the sum of its proper divisors (393820129).

2539459439 is a wasteful number, since it uses less digits than its factorization.

2539459439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13580025.

The product of its digits is 5248800, while the sum is 53.

The square root of 2539459439 is about 50393.0495108204. The cubic root of 2539459439 is about 1364.3121920440.

The spelling of 2539459439 in words is "two billion, five hundred thirty-nine million, four hundred fifty-nine thousand, four hundred thirty-nine".