11383506779 has 4 divisors (see below), whose sum is σ = 11383756920. Its totient is φ = 11383256640.

The previous prime is 11383506769. The next prime is 11383506781. The reversal of 11383506779 is 97760538311.

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 11383506779 - 2⁴ = 11383506763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11383506709) 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, 35357 + ... + 154974.

It is an arithmetic number, because the mean of its divisors is an integer number (2845939230).

Almost surely, 2^11383506779 is an apocalyptic number.

11383506779 is a deficient number, since it is larger than the sum of its proper divisors (250141).

11383506779 is an equidigital number, since it uses as much as digits as its factorization.

11383506779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250140.

The product of its (nonzero) digits is 952560, while the sum is 50.

The spelling of 11383506779 in words is "eleven billion, three hundred eighty-three million, five hundred six thousand, seven hundred seventy-nine".