4258778459 has 4 divisors (see below), whose sum is σ = 4586376816. Its totient is φ = 3931180104.

The previous prime is 4258778453. The next prime is 4258778471. The reversal of 4258778459 is 9548778524.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4258778459 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4258778398 and 4258778407.

It is not an unprimeable number, because it can be changed into a prime (4258778453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163799159 + ... + 163799184.

It is an arithmetic number, because the mean of its divisors is an integer number (1146594204).

Almost surely, 2^4258778459 is an apocalyptic number.

4258778459 is a deficient number, since it is larger than the sum of its proper divisors (327598357).

4258778459 is a wasteful number, since it uses less digits than its factorization.

4258778459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327598356.

The product of its digits is 22579200, while the sum is 59.

The square root of 4258778459 is about 65259.3170282987. The cubic root of 4258778459 is about 1620.9203806980.

The spelling of 4258778459 in words is "four billion, two hundred fifty-eight million, seven hundred seventy-eight thousand, four hundred fifty-nine".