11039904779 has 4 divisors (see below), whose sum is σ = 11040122880. Its totient is φ = 11039686680.

The previous prime is 11039904773. The next prime is 11039904781. The reversal of 11039904779 is 97740993011.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97740993011 = 56569 ⋅1727819.

It is a cyclic number.

It is not a de Polignac number, because 11039904779 - 2⁴ = 11039904763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11039904773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10742 + ... + 148980.

It is an arithmetic number, because the mean of its divisors is an integer number (2760030720).

Almost surely, 2^11039904779 is an apocalyptic number.

11039904779 is a deficient number, since it is larger than the sum of its proper divisors (218101).

11039904779 is an equidigital number, since it uses as much as digits as its factorization.

11039904779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218100.

The product of its (nonzero) digits is 428652, while the sum is 50.

The spelling of 11039904779 in words is "eleven billion, thirty-nine million, nine hundred four thousand, seven hundred seventy-nine".