1179162290881 has 4 divisors (see below), whose sum is σ = 1179187701700. Its totient is φ = 1179136880064.

The previous prime is 1179162290861. The next prime is 1179162290897. The reversal of 1179162290881 is 1880922619711.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 552879986481 + 626282304400 = 743559^2 + 791380^2 .

It is a cyclic number.

It is not a de Polignac number, because 1179162290881 - 2²³ = 1179153902273 is a prime.

It is a super-2 number, since 2×1179162290881² (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 (1179162290861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12635676 + ... + 12728653.

It is an arithmetic number, because the mean of its divisors is an integer number (294796925425).

Almost surely, 2^{1179162290881} is an apocalyptic number.

It is an amenable number.

1179162290881 is a deficient number, since it is larger than the sum of its proper divisors (25410819).

1179162290881 is an equidigital number, since it uses as much as digits as its factorization.

1179162290881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25410818.

The product of its (nonzero) digits is 870912, while the sum is 55.

The spelling of 1179162290881 in words is "one trillion, one hundred seventy-nine billion, one hundred sixty-two million, two hundred ninety thousand, eight hundred eighty-one".