2648344990849 has 2 divisors, whose sum is σ = 2648344990850. Its totient is φ = 2648344990848.

The previous prime is 2648344990829. The next prime is 2648344990867. The reversal of 2648344990849 is 9480994438462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1665114094449 + 983230896400 = 1290393^2 + 991580^2 .

It is a cyclic number.

It is not a de Polignac number, because 2648344990849 - 2⁹ = 2648344990337 is a prime.

It is not a weakly prime, because it can be changed into another prime (2648344990829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1324172495424 + 1324172495425.

It is an arithmetic number, because the mean of its divisors is an integer number (1324172495425).

Almost surely, 2^{2648344990849} is an apocalyptic number.

It is an amenable number.

2648344990849 is a deficient number, since it is larger than the sum of its proper divisors (1).

2648344990849 is an equidigital number, since it uses as much as digits as its factorization.

2648344990849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 429981696, while the sum is 70.

The spelling of 2648344990849 in words is "two trillion, six hundred forty-eight billion, three hundred forty-four million, nine hundred ninety thousand, eight hundred forty-nine".