1169808806929 has 15 divisors (see below), whose sum is σ = 1364757567803. Its totient is φ = 1002647836848.

The previous prime is 1169808806863. The next prime is 1169808806941. The reversal of 1169808806929 is 9296088089611.

The square root of 1169808806929 is 1081577.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1134256950225 + 35551856704 = 1065015^2 + 188552^2 .

It is not a de Polignac number, because 1169808806929 - 2²⁵ = 1169775252497 is a prime.

It is a super-2 number, since 2×1169808806929² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1169808806429) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 52986237 + ... + 53008309.

Almost surely, 2^{1169808806929} is an apocalyptic number.

1169808806929 is the 1081577-th square number.

1169808806929 is the 540789-th centered octagonal number.

It is an amenable number.

1169808806929 is a deficient number, since it is larger than the sum of its proper divisors (194948760874).

1169808806929 is an frugal number, since it uses more digits than its factorization.

1169808806929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44174 (or 22080 counting only the distinct ones).

The product of its (nonzero) digits is 26873856, while the sum is 67.

The spelling of 1169808806929 in words is "one trillion, one hundred sixty-nine billion, eight hundred eight million, eight hundred six thousand, nine hundred twenty-nine".