2649089213 has 2 divisors, whose sum is σ = 2649089214. Its totient is φ = 2649089212.

The previous prime is 2649089197. The next prime is 2649089279. The reversal of 2649089213 is 3129809462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2634050329 + 15038884 = 51323^2 + 3878^2 .

It is a cyclic number.

It is not a de Polignac number, because 2649089213 - 2⁴ = 2649089197 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2649089713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1324544606 + 1324544607.

It is an arithmetic number, because the mean of its divisors is an integer number (1324544607).

Almost surely, 2^2649089213 is an apocalyptic number.

2649089213 is the 27512-nd centered heptagonal number.

It is an amenable number.

2649089213 is a deficient number, since it is larger than the sum of its proper divisors (1).

2649089213 is an equidigital number, since it uses as much as digits as its factorization.

2649089213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 2649089213 is about 51469.3035993300. The cubic root of 2649089213 is about 1383.6689481071.

The spelling of 2649089213 in words is "two billion, six hundred forty-nine million, eighty-nine thousand, two hundred thirteen".