2709964562809 has 9 divisors (see below), whose sum is σ = 3152421161541. Its totient is φ = 2322816890940.

The previous prime is 2709964562801. The next prime is 2709964562813. The reversal of 2709964562809 is 9082654699072.

The square root of 2709964562809 is 1646197.

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

It is not a de Polignac number, because 2709964562809 - 2³ = 2709964562801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2709964562801) 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, 11405794 + ... + 11640964.

It is an arithmetic number, because the mean of its divisors is an integer number (350269017949).

Almost surely, 2^{2709964562809} is an apocalyptic number.

2709964562809 is the 1646197-th square number.

2709964562809 is the 823099-th centered octagonal number.

It is an amenable number.

2709964562809 is a deficient number, since it is larger than the sum of its proper divisors (442456598732).

2709964562809 is an frugal number, since it uses more digits than its factorization.

2709964562809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470356 (or 235178 counting only the distinct ones).

The product of its (nonzero) digits is 117573120, while the sum is 67.

The spelling of 2709964562809 in words is "two trillion, seven hundred nine billion, nine hundred sixty-four million, five hundred sixty-two thousand, eight hundred nine".