1105320779779 has 4 divisors (see below), whose sum is σ = 1105369964776. Its totient is φ = 1105271594784.

The previous prime is 1105320779747. The next prime is 1105320779819. The reversal of 1105320779779 is 9779770235011.

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 1105320779779 - 2⁵ = 1105320779747 is a prime.

It is a super-2 number, since 2×1105320779779² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1105320779179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24558774 + ... + 24603739.

It is an arithmetic number, because the mean of its divisors is an integer number (276342491194).

Almost surely, 2^{1105320779779} is an apocalyptic number.

1105320779779 is a deficient number, since it is larger than the sum of its proper divisors (49184997).

1105320779779 is an equidigital number, since it uses as much as digits as its factorization.

1105320779779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49184996.

The product of its (nonzero) digits is 5834430, while the sum is 58.

The spelling of 1105320779779 in words is "one trillion, one hundred five billion, three hundred twenty million, seven hundred seventy-nine thousand, seven hundred seventy-nine".