4278579889 has 2 divisors, whose sum is σ = 4278579890. Its totient is φ = 4278579888.

The previous prime is 4278579863. The next prime is 4278579953. The reversal of 4278579889 is 9889758724.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4144784400 + 133795489 = 64380^2 + 11567^2 .

It is a cyclic number.

It is not a de Polignac number, because 4278579889 - 2¹⁵ = 4278547121 is a prime.

It is not a weakly prime, because it can be changed into another prime (4278579689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2139289944 + 2139289945.

It is an arithmetic number, because the mean of its divisors is an integer number (2139289945).

Almost surely, 2^4278579889 is an apocalyptic number.

It is an amenable number.

4278579889 is a deficient number, since it is larger than the sum of its proper divisors (1).

4278579889 is an equidigital number, since it uses as much as digits as its factorization.

4278579889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81285120, while the sum is 67.

The square root of 4278579889 is about 65410.8545197202. The cubic root of 4278579889 is about 1623.4286840350.

The spelling of 4278579889 in words is "four billion, two hundred seventy-eight million, five hundred seventy-nine thousand, eight hundred eighty-nine".