1179320805447 has 8 divisors (see below), whose sum is σ = 1573737010800. Its totient is φ = 785559235200.

The previous prime is 1179320805413. The next prime is 1179320805469. The reversal of 1179320805447 is 7445080239711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1179320805447 - 2²⁰ = 1179319756871 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1179320805447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1179320805407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163654572 + ... + 163661777.

It is an arithmetic number, because the mean of its divisors is an integer number (196717126350).

Almost surely, 2^{1179320805447} is an apocalyptic number.

1179320805447 is a deficient number, since it is larger than the sum of its proper divisors (394416205353).

1179320805447 is a wasteful number, since it uses less digits than its factorization.

1179320805447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327317553.

The product of its (nonzero) digits is 1693440, while the sum is 51.

The spelling of 1179320805447 in words is "one trillion, one hundred seventy-nine billion, three hundred twenty million, eight hundred five thousand, four hundred forty-seven".