1172075587279 has 4 divisors (see below), whose sum is σ = 1172339157184. Its totient is φ = 1171812017376.

The previous prime is 1172075587259. The next prime is 1172075587297. The reversal of 1172075587279 is 9727855702711.

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 1172075587279 - 2⁵ = 1172075587247 is a prime.

It is a super-2 number, since 2×1172075587279² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1172075587259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131778282 + ... + 131787175.

It is an arithmetic number, because the mean of its divisors is an integer number (293084789296).

Almost surely, 2^{1172075587279} is an apocalyptic number.

1172075587279 is a deficient number, since it is larger than the sum of its proper divisors (263569905).

1172075587279 is an equidigital number, since it uses as much as digits as its factorization.

1172075587279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263569904.

The product of its (nonzero) digits is 17287200, while the sum is 61.

The spelling of 1172075587279 in words is "one trillion, one hundred seventy-two billion, seventy-five million, five hundred eighty-seven thousand, two hundred seventy-nine".