4650878809 has 2 divisors, whose sum is σ = 4650878810. Its totient is φ = 4650878808.

The previous prime is 4650878807. The next prime is 4650878833. The reversal of 4650878809 is 9088780564.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3086913600 + 1563965209 = 55560^2 + 39547^2 .

It is a cyclic number.

It is not a de Polignac number, because 4650878809 - 2¹ = 4650878807 is a prime.

Together with 4650878807, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 4650878809.

It is not a weakly prime, because it can be changed into another prime (4650878807) 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, 2325439404 + 2325439405.

It is an arithmetic number, because the mean of its divisors is an integer number (2325439405).

Almost surely, 2^4650878809 is an apocalyptic number.

It is an amenable number.

4650878809 is a deficient number, since it is larger than the sum of its proper divisors (1).

4650878809 is an equidigital number, since it uses as much as digits as its factorization.

4650878809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3870720, while the sum is 55.

The square root of 4650878809 is about 68197.3519207308. The cubic root of 4650878809 is about 1669.2126769098.

The spelling of 4650878809 in words is "four billion, six hundred fifty million, eight hundred seventy-eight thousand, eight hundred nine".