4619238889 has 2 divisors, whose sum is σ = 4619238890. Its totient is φ = 4619238888.

The previous prime is 4619238887. The next prime is 4619238947. The reversal of 4619238889 is 9888329164.

It is an a-pointer prime, because the next prime (4619238947) can be obtained adding 4619238889 to its sum of digits (58).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3955403664 + 663835225 = 62892^2 + 25765^2 .

It is a cyclic number.

It is not a de Polignac number, because 4619238889 - 2¹ = 4619238887 is a prime.

Together with 4619238887, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (4619238881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2309619444 + 2309619445.

It is an arithmetic number, because the mean of its divisors is an integer number (2309619445).

Almost surely, 2^4619238889 is an apocalyptic number.

It is an amenable number.

4619238889 is a deficient number, since it is larger than the sum of its proper divisors (1).

4619238889 is an equidigital number, since it uses as much as digits as its factorization.

4619238889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5971968, while the sum is 58.

The square root of 4619238889 is about 67964.9828146819. The cubic root of 4619238889 is about 1665.4188437871.

The spelling of 4619238889 in words is "four billion, six hundred nineteen million, two hundred thirty-eight thousand, eight hundred eighty-nine".