3112518078289 has 9 divisors (see below), whose sum is σ = 3117276418089. Its totient is φ = 3107766998820.

The previous prime is 3112518078281. The next prime is 3112518078323. The reversal of 3112518078289 is 9828708152113.

It is a happy number.

The square root of 3112518078289 is 1764233.

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

It is not a de Polignac number, because 3112518078289 - 2³ = 3112518078281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3112518078281) 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 8 ways as a sum of consecutive naturals, for example, 1981232874 + ... + 1981234444.

Almost surely, 2^{3112518078289} is an apocalyptic number.

3112518078289 is the 1764233-rd square number.

3112518078289 is the 882117-th centered octagonal number.

It is an amenable number.

3112518078289 is a deficient number, since it is larger than the sum of its proper divisors (4758339800).

3112518078289 is an frugal number, since it uses more digits than its factorization.

3112518078289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5388 (or 2694 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 55.

The spelling of 3112518078289 in words is "three trillion, one hundred twelve billion, five hundred eighteen million, seventy-eight thousand, two hundred eighty-nine".