2730876649 has 4 divisors (see below), whose sum is σ = 2804684164. Its totient is φ = 2657069136.

The previous prime is 2730876647. The next prime is 2730876713. The reversal of 2730876649 is 9466780372.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2291345424 + 439531225 = 47868^2 + 20965^2 .

It is a cyclic number.

It is not a de Polignac number, because 2730876649 - 2¹ = 2730876647 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2730876596 and 2730876605.

It is not an unprimeable number, because it can be changed into a prime (2730876647) 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, 36903702 + ... + 36903775.

It is an arithmetic number, because the mean of its divisors is an integer number (701171041).

Almost surely, 2^2730876649 is an apocalyptic number.

It is an amenable number.

2730876649 is a deficient number, since it is larger than the sum of its proper divisors (73807515).

2730876649 is an equidigital number, since it uses as much as digits as its factorization.

2730876649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73807514.

The product of its (nonzero) digits is 3048192, while the sum is 52.

The square root of 2730876649 is about 52257.7903187649. The cubic root of 2730876649 is about 1397.7645700942.

The spelling of 2730876649 in words is "two billion, seven hundred thirty million, eight hundred seventy-six thousand, six hundred forty-nine".