1076308727209 has 9 divisors (see below), whose sum is σ = 1086036165669. Its totient is φ = 1066667676480.

The previous prime is 1076308727161. The next prime is 1076308727213. The reversal of 1076308727209 is 9027278036701.

The square root of 1076308727209 is 1037453.

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

It can be written as a sum of positive squares in 4 ways, for example, as 250805648025 + 825503079184 = 500805^2 + 908572^2 .

It is not a de Polignac number, because 1076308727209 - 2²⁹ = 1075771856297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1076308727609) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 117227599 + ... + 117236779.

Almost surely, 2^{1076308727209} is an apocalyptic number.

1076308727209 is the 1037453-rd square number.

1076308727209 is the 518727-th centered octagonal number.

It is an amenable number.

1076308727209 is a deficient number, since it is larger than the sum of its proper divisors (9727438460).

1076308727209 is an frugal number, since it uses more digits than its factorization.

1076308727209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18588 (or 9294 counting only the distinct ones).

The product of its (nonzero) digits is 1778112, while the sum is 52.

The spelling of 1076308727209 in words is "one trillion, seventy-six billion, three hundred eight million, seven hundred twenty-seven thousand, two hundred nine".