2641708009 has 2 divisors, whose sum is σ = 2641708010. Its totient is φ = 2641708008.

The previous prime is 2641708007. The next prime is 2641708031. The reversal of 2641708009 is 9008071462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1348945984 + 1292762025 = 36728^2 + 35955^2 .

It is a cyclic number.

It is not a de Polignac number, because 2641708009 - 2¹ = 2641708007 is a prime.

Together with 2641708007, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2641708007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1320854004 + 1320854005.

It is an arithmetic number, because the mean of its divisors is an integer number (1320854005).

Almost surely, 2^2641708009 is an apocalyptic number.

It is an amenable number.

2641708009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2641708009 is an equidigital number, since it uses as much as digits as its factorization.

2641708009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 2641708009 is about 51397.5486672273. The cubic root of 2641708009 is about 1382.3826389458.

The spelling of 2641708009 in words is "two billion, six hundred forty-one million, seven hundred eight thousand, nine".