4893128789 has 2 divisors, whose sum is σ = 4893128790. Its totient is φ = 4893128788.

The previous prime is 4893128783. The next prime is 4893128837. The reversal of 4893128789 is 9878213984.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3674420689 + 1218708100 = 60617^2 + 34910^2 .

It is a cyclic number.

It is not a de Polignac number, because 4893128789 - 2⁸ = 4893128533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4893128783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2446564394 + 2446564395.

It is an arithmetic number, because the mean of its divisors is an integer number (2446564395).

Almost surely, 2^4893128789 is an apocalyptic number.

It is an amenable number.

4893128789 is a deficient number, since it is larger than the sum of its proper divisors (1).

4893128789 is an equidigital number, since it uses as much as digits as its factorization.

4893128789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6967296, while the sum is 59.

The square root of 4893128789 is about 69950.9027032532. The cubic root of 4893128789 is about 1697.7049524970.

The spelling of 4893128789 in words is "four billion, eight hundred ninety-three million, one hundred twenty-eight thousand, seven hundred eighty-nine".