7042378663 has 2 divisors, whose sum is σ = 7042378664. Its totient is φ = 7042378662.

The previous prime is 7042378649. The next prime is 7042378669. The reversal of 7042378663 is 3668732407.

It is a strong prime.

It is an emirp because it is prime and its reverse (3668732407) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7042378663 - 2²⁵ = 7008824231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7042378669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3521189331 + 3521189332.

It is an arithmetic number, because the mean of its divisors is an integer number (3521189332).

Almost surely, 2^7042378663 is an apocalyptic number.

7042378663 is a deficient number, since it is larger than the sum of its proper divisors (1).

7042378663 is an equidigital number, since it uses as much as digits as its factorization.

7042378663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1016064, while the sum is 46.

The square root of 7042378663 is about 83918.8814451194. The cubic root of 7042378663 is about 1916.7837740704.

The spelling of 7042378663 in words is "seven billion, forty-two million, three hundred seventy-eight thousand, six hundred sixty-three".