2869287046609 has 27 divisors (see below), whose sum is σ = 3133765373907. Its totient is φ = 2626543137024.

The previous prime is 2869287046603. The next prime is 2869287046631. The reversal of 2869287046609 is 9066407829682.

The square root of 2869287046609 is 1693897.

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

It can be written as a sum of positive squares in 13 ways, for example, as 44628675025 + 2824658371584 = 211255^2 + 1680672^2 .

It is not a de Polignac number, because 2869287046609 - 2¹³ = 2869287038417 is a prime.

It is a super-3 number, since 3×2869287046609³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2869287046603) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1065459867 + ... + 1065462559.

Almost surely, 2^{2869287046609} is an apocalyptic number.

2869287046609 is the 1693897-th square number.

2869287046609 is the 846949-th centered octagonal number.

It is an amenable number.

2869287046609 is a deficient number, since it is larger than the sum of its proper divisors (264478327298).

2869287046609 is an frugal number, since it uses more digits than its factorization.

2869287046609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5494 (or 2747 counting only the distinct ones).

The product of its (nonzero) digits is 125411328, while the sum is 67.

The spelling of 2869287046609 in words is "two trillion, eight hundred sixty-nine billion, two hundred eighty-seven million, forty-six thousand, six hundred nine".