2648578787399 has 2 divisors, whose sum is σ = 2648578787400. Its totient is φ = 2648578787398.

The previous prime is 2648578787339. The next prime is 2648578787497. The reversal of 2648578787399 is 9937878758462.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2648578787399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2648578787339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1324289393699 + 1324289393700.

It is an arithmetic number, because the mean of its divisors is an integer number (1324289393700).

Almost surely, 2^{2648578787399} is an apocalyptic number.

2648578787399 is a deficient number, since it is larger than the sum of its proper divisors (1).

2648578787399 is an equidigital number, since it uses as much as digits as its factorization.

2648578787399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10241925120, while the sum is 83.

The spelling of 2648578787399 in words is "two trillion, six hundred forty-eight billion, five hundred seventy-eight million, seven hundred eighty-seven thousand, three hundred ninety-nine".