2080354009 has 4 divisors (see below), whose sum is σ = 2080464804. Its totient is φ = 2080243216.

The previous prime is 2080354007. The next prime is 2080354021. The reversal of 2080354009 is 9004530802.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9004530802 = 2 ⋅4502265401.

It can be written as a sum of positive squares in 2 ways, for example, as 1662355984 + 417998025 = 40772^2 + 20445^2 .

It is a cyclic number.

It is not a de Polignac number, because 2080354009 - 2¹ = 2080354007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2080354007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19462 + ... + 67375.

It is an arithmetic number, because the mean of its divisors is an integer number (520116201).

Almost surely, 2^2080354009 is an apocalyptic number.

It is an amenable number.

2080354009 is a deficient number, since it is larger than the sum of its proper divisors (110795).

2080354009 is an equidigital number, since it uses as much as digits as its factorization.

2080354009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110794.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 2080354009 is about 45610.8979192473. The cubic root of 2080354009 is about 1276.5732743807.

The spelling of 2080354009 in words is "two billion, eighty million, three hundred fifty-four thousand, nine".