2650816577 has 2 divisors, whose sum is σ = 2650816578. Its totient is φ = 2650816576.

The previous prime is 2650816573. The next prime is 2650816589. The reversal of 2650816577 is 7756180562.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2463236161 + 187580416 = 49631^2 + 13696^2 .

It is a cyclic number.

It is not a de Polignac number, because 2650816577 - 2² = 2650816573 is a prime.

It is not a weakly prime, because it can be changed into another prime (2650816573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1325408288 + 1325408289.

It is an arithmetic number, because the mean of its divisors is an integer number (1325408289).

Almost surely, 2^2650816577 is an apocalyptic number.

It is an amenable number.

2650816577 is a deficient number, since it is larger than the sum of its proper divisors (1).

2650816577 is an equidigital number, since it uses as much as digits as its factorization.

2650816577 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 705600, while the sum is 47.

The square root of 2650816577 is about 51486.0813909934. The cubic root of 2650816577 is about 1383.9696276274.

The spelling of 2650816577 in words is "two billion, six hundred fifty million, eight hundred sixteen thousand, five hundred seventy-seven".