2641357709 has 2 divisors, whose sum is σ = 2641357710. Its totient is φ = 2641357708.

The previous prime is 2641357687. The next prime is 2641357769. The reversal of 2641357709 is 9077531462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2395808809 + 245548900 = 48947^2 + 15670^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2641357709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2641357709.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2641357769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1320678854 + 1320678855.

It is an arithmetic number, because the mean of its divisors is an integer number (1320678855).

Almost surely, 2^2641357709 is an apocalyptic number.

It is an amenable number.

2641357709 is a deficient number, since it is larger than the sum of its proper divisors (1).

2641357709 is an equidigital number, since it uses as much as digits as its factorization.

2641357709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 317520, while the sum is 44.

The square root of 2641357709 is about 51394.1408041812. The cubic root of 2641357709 is about 1382.3215332719.

The spelling of 2641357709 in words is "two billion, six hundred forty-one million, three hundred fifty-seven thousand, seven hundred nine".