6458854689 has 81 divisors (see below), whose sum is σ = 11237133843. Its totient is φ = 3564437184.

The previous prime is 6458854651. The next prime is 6458854691. The reversal of 6458854689 is 9864588546.

The square root of 6458854689 is 80367.

It is a perfect power (a square), and thus also a powerful number.

6458854689 is a `hidden beast` number, since 6 + 4 + 5 + 8 + 8 + 546 + 89 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1240237089 + 5218617600 = 35217^2 + 72240^2 .

It is not a de Polignac number, because 6458854689 - 2⁷ = 6458854561 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (6458854609) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 72571357 + ... + 72571445.

Almost surely, 2^6458854689 is an apocalyptic number.

6458854689 is the 80367-th square number.

6458854689 is the 40184-th centered octagonal number.

It is an amenable number.

6458854689 is a deficient number, since it is larger than the sum of its proper divisors (4778279154).

6458854689 is an equidigital number, since it uses as much as digits as its factorization.

6458854689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284 (or 142 counting only the distinct ones).

The product of its digits is 66355200, while the sum is 63.

The cubic root of 6458854689 is about 1862.3094111481.

The spelling of 6458854689 in words is "six billion, four hundred fifty-eight million, eight hundred fifty-four thousand, six hundred eighty-nine".