11742808139 has 4 divisors (see below), whose sum is σ = 11891451360. Its totient is φ = 11594164920.

The previous prime is 11742808081. The next prime is 11742808159. The reversal of 11742808139 is 93180824711.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11742808139 - 2¹⁶ = 11742742603 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11742808139.

It is not an unprimeable number, because it can be changed into a prime (11742808159) 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, 74321492 + ... + 74321649.

It is an arithmetic number, because the mean of its divisors is an integer number (2972862840).

Almost surely, 2^11742808139 is an apocalyptic number.

11742808139 is a deficient number, since it is larger than the sum of its proper divisors (148643221).

11742808139 is an equidigital number, since it uses as much as digits as its factorization.

11742808139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148643220.

The product of its (nonzero) digits is 96768, while the sum is 44.

The spelling of 11742808139 in words is "eleven billion, seven hundred forty-two million, eight hundred eight thousand, one hundred thirty-nine".