6458449789899 has 18 divisors (see below), whose sum is σ = 9531581704580. Its totient is φ = 4214023963416.

The previous prime is 6458449789889. The next prime is 6458449789919. The reversal of 6458449789899 is 9989879448546.

6458449789899 is a `hidden beast` number, since 6 + 4 + 5 + 8 + 449 + 7 + 89 + 89 + 9 = 666.

It is not a de Polignac number, because 6458449789899 - 2²¹ = 6458447692747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6458449789849) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 162407809 + ... + 162447570.

Almost surely, 2^{6458449789899} is an apocalyptic number.

6458449789899 is a deficient number, since it is larger than the sum of its proper divisors (3073131914681).

6458449789899 is a wasteful number, since it uses less digits than its factorization.

6458449789899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324855479 (or 324855429 counting only the distinct ones).

The product of its digits is 45148078080, while the sum is 90.

The spelling of 6458449789899 in words is "six trillion, four hundred fifty-eight billion, four hundred forty-nine million, seven hundred eighty-nine thousand, eight hundred ninety-nine".