11117778839 has 4 divisors (see below), whose sum is σ = 11219776920. Its totient is φ = 11015780760.

The previous prime is 11117778827. The next prime is 11117778863. The reversal of 11117778839 is 93887771111.

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 11117778839 - 2²⁸ = 10849343383 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 (11117778739) 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, 50998877 + ... + 50999094.

It is an arithmetic number, because the mean of its divisors is an integer number (2804944230).

Almost surely, 2^11117778839 is an apocalyptic number.

11117778839 is a deficient number, since it is larger than the sum of its proper divisors (101998081).

11117778839 is a wasteful number, since it uses less digits than its factorization.

11117778839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101998080.

The product of its digits is 592704, while the sum is 53.

The spelling of 11117778839 in words is "eleven billion, one hundred seventeen million, seven hundred seventy-eight thousand, eight hundred thirty-nine".