4678457909 has 2 divisors, whose sum is σ = 4678457910. Its totient is φ = 4678457908.

The previous prime is 4678457887. The next prime is 4678457939. The reversal of 4678457909 is 9097548764.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4675550884 + 2907025 = 68378^2 + 1705^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4678457909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4678457939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2339228954 + 2339228955.

It is an arithmetic number, because the mean of its divisors is an integer number (2339228955).

Almost surely, 2^4678457909 is an apocalyptic number.

It is an amenable number.

4678457909 is a deficient number, since it is larger than the sum of its proper divisors (1).

4678457909 is an equidigital number, since it uses as much as digits as its factorization.

4678457909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15240960, while the sum is 59.

The square root of 4678457909 is about 68399.2537166890. The cubic root of 4678457909 is about 1672.5055805540.

The spelling of 4678457909 in words is "four billion, six hundred seventy-eight million, four hundred fifty-seven thousand, nine hundred nine".