2649830873 has 4 divisors (see below), whose sum is σ = 2649942480. Its totient is φ = 2649719268.

The previous prime is 2649830837. The next prime is 2649830879. The reversal of 2649830873 is 3780389462.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2649830873 - 2³⁰ = 1576089049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2649830879) 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 3 ways as a sum of consecutive naturals, for example, 4415 + ... + 72932.

It is an arithmetic number, because the mean of its divisors is an integer number (662485620).

Almost surely, 2^2649830873 is an apocalyptic number.

It is an amenable number.

2649830873 is a deficient number, since it is larger than the sum of its proper divisors (111607).

2649830873 is an equidigital number, since it uses as much as digits as its factorization.

2649830873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111606.

The product of its (nonzero) digits is 1741824, while the sum is 50.

The square root of 2649830873 is about 51476.5079720837. The cubic root of 2649830873 is about 1383.7980636981.

The spelling of 2649830873 in words is "two billion, six hundred forty-nine million, eight hundred thirty thousand, eight hundred seventy-three".