2700805809 has 8 divisors (see below), whose sum is σ = 3878080192. Its totient is φ = 1662034320.

The previous prime is 2700805801. The next prime is 2700805813. The reversal of 2700805809 is 9085080072.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2700805809 - 2³ = 2700805801 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 69251431 = 2700805809 / (2 + 7 + 0 + 0 + 8 + 0 + 5 + 8 + 0 + 9).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2700805801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34625677 + ... + 34625754.

It is an arithmetic number, because the mean of its divisors is an integer number (484760024).

Almost surely, 2^2700805809 is an apocalyptic number.

It is an amenable number.

2700805809 is a deficient number, since it is larger than the sum of its proper divisors (1177274383).

2700805809 is a wasteful number, since it uses less digits than its factorization.

2700805809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69251447.

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 2700805809 is about 51969.2775493368. The cubic root of 2700805809 is about 1392.6151634923.

The spelling of 2700805809 in words is "two billion, seven hundred million, eight hundred five thousand, eight hundred nine".