6458438789 has 8 divisors (see below), whose sum is σ = 7416389280. Its totient is φ = 5562291600.

The previous prime is 6458438783. The next prime is 6458438849. The reversal of 6458438789 is 9878348546.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6458438789 - 2²⁰ = 6457390213 is a prime.

It is a super-2 number, since 2×6458438789² = 83422863182519573042, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6458438783) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15450602 + ... + 15451019.

It is an arithmetic number, because the mean of its divisors is an integer number (927048660).

Almost surely, 2^6458438789 is an apocalyptic number.

It is an amenable number.

6458438789 is a deficient number, since it is larger than the sum of its proper divisors (957950491).

6458438789 is a wasteful number, since it uses less digits than its factorization.

6458438789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30901651.

The product of its digits is 46448640, while the sum is 62.

The square root of 6458438789 is about 80364.4124535232. The cubic root of 6458438789 is about 1862.2694375435.

The spelling of 6458438789 in words is "six billion, four hundred fifty-eight million, four hundred thirty-eight thousand, seven hundred eighty-nine".