4259128643 has 32 divisors (see below), whose sum is σ = 5639155200. Its totient is φ = 3114293760.

The previous prime is 4259128637. The next prime is 4259128651. The reversal of 4259128643 is 3468219524.

It is a Cunningham number, because it is equal to 65262²-1.

It is a cyclic number.

It is not a de Polignac number, because 4259128643 - 2⁸ = 4259128387 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4259128594 and 4259128603.

It is not an unprimeable number, because it can be changed into a prime (4259128603) 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 in 31 ways as a sum of consecutive naturals, for example, 452180 + ... + 461502.

It is an arithmetic number, because the mean of its divisors is an integer number (176223600).

Almost surely, 2^4259128643 is an apocalyptic number.

4259128643 is a deficient number, since it is larger than the sum of its proper divisors (1380026557).

4259128643 is a wasteful number, since it uses less digits than its factorization.

4259128643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9707.

The product of its digits is 414720, while the sum is 44.

The square root of 4259128643 is about 65261.9999923386. Note that the first 5 decimals coincide. The cubic root of 4259128643 is about 1620.9648069602.

The spelling of 4259128643 in words is "four billion, two hundred fifty-nine million, one hundred twenty-eight thousand, six hundred forty-three".