4567678789 has 2 divisors, whose sum is σ = 4567678790. Its totient is φ = 4567678788.

The previous prime is 4567678783. The next prime is 4567678873. The reversal of 4567678789 is 9878767654.

It is a happy number.

4567678789 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4546130625 + 21548164 = 67425^2 + 4642^2 .

It is a cyclic number.

It is not a de Polignac number, because 4567678789 - 2³ = 4567678781 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4567678781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2283839394 + 2283839395.

It is an arithmetic number, because the mean of its divisors is an integer number (2283839395).

Almost surely, 2^4567678789 is an apocalyptic number.

It is an amenable number.

4567678789 is a deficient number, since it is larger than the sum of its proper divisors (1).

4567678789 is an equidigital number, since it uses as much as digits as its factorization.

4567678789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 142248960, while the sum is 67.

The square root of 4567678789 is about 67584.6046744375. The cubic root of 4567678789 is about 1659.1991575455.

The spelling of 4567678789 in words is "four billion, five hundred sixty-seven million, six hundred seventy-eight thousand, seven hundred eighty-nine".