11439267839 has 4 divisors (see below), whose sum is σ = 11445187656. Its totient is φ = 11433348024.

The previous prime is 11439267821. The next prime is 11439267883. The reversal of 11439267839 is 93876293411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93876293411 = 10427 ⋅9003193.

It is a cyclic number.

It is not a de Polignac number, because 11439267839 - 2¹² = 11439263743 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 (11439267899) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2957009 + ... + 2960874.

It is an arithmetic number, because the mean of its divisors is an integer number (2861296914).

Almost surely, 2^11439267839 is an apocalyptic number.

11439267839 is a deficient number, since it is larger than the sum of its proper divisors (5919817).

11439267839 is an equidigital number, since it uses as much as digits as its factorization.

11439267839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5919816.

The product of its digits is 1959552, while the sum is 53.

The spelling of 11439267839 in words is "eleven billion, four hundred thirty-nine million, two hundred sixty-seven thousand, eight hundred thirty-nine".