2648620399 has 2 divisors, whose sum is σ = 2648620400. Its totient is φ = 2648620398.

The previous prime is 2648620379. The next prime is 2648620531. The reversal of 2648620399 is 9930268462.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2648620399 - 2⁵ = 2648620367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2648620339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1324310199 + 1324310200.

It is an arithmetic number, because the mean of its divisors is an integer number (1324310200).

Almost surely, 2^2648620399 is an apocalyptic number.

2648620399 is a deficient number, since it is larger than the sum of its proper divisors (1).

2648620399 is an equidigital number, since it uses as much as digits as its factorization.

2648620399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1119744, while the sum is 49.

The square root of 2648620399 is about 51464.7490910040. The cubic root of 2648620399 is about 1383.5873198452.

The spelling of 2648620399 in words is "two billion, six hundred forty-eight million, six hundred twenty thousand, three hundred ninety-nine".