2649507361 has 2 divisors, whose sum is σ = 2649507362. Its totient is φ = 2649507360.

The previous prime is 2649507353. The next prime is 2649507389. The reversal of 2649507361 is 1637059462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2532001761 + 117505600 = 50319^2 + 10840^2 .

It is a cyclic number.

It is not a de Polignac number, because 2649507361 - 2³ = 2649507353 is a prime.

It is not a weakly prime, because it can be changed into another prime (2649507061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1324753680 + 1324753681.

It is an arithmetic number, because the mean of its divisors is an integer number (1324753681).

Almost surely, 2^2649507361 is an apocalyptic number.

It is an amenable number.

2649507361 is a deficient number, since it is larger than the sum of its proper divisors (1).

2649507361 is an equidigital number, since it uses as much as digits as its factorization.

2649507361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 272160, while the sum is 43.

The square root of 2649507361 is about 51473.3655495733. The cubic root of 2649507361 is about 1383.7417464562.

The spelling of 2649507361 in words is "two billion, six hundred forty-nine million, five hundred seven thousand, three hundred sixty-one".