2049610813 has 2 divisors, whose sum is σ = 2049610814. Its totient is φ = 2049610812.

The previous prime is 2049610727. The next prime is 2049610817. The reversal of 2049610813 is 3180169402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2039606244 + 10004569 = 45162^2 + 3163^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2049610813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2049610817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1024805406 + 1024805407.

It is an arithmetic number, because the mean of its divisors is an integer number (1024805407).

Almost surely, 2^2049610813 is an apocalyptic number.

It is an amenable number.

2049610813 is a deficient number, since it is larger than the sum of its proper divisors (1).

2049610813 is an equidigital number, since it uses as much as digits as its factorization.

2049610813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 2049610813 is about 45272.6276352500. The cubic root of 2049610813 is about 1270.2536978449.

The spelling of 2049610813 in words is "two billion, forty-nine million, six hundred ten thousand, eight hundred thirteen".