6458856544609 has 8 divisors (see below), whose sum is σ = 7385761160960. Its totient is φ = 5533004634336.

The previous prime is 6458856544571. The next prime is 6458856544681. The reversal of 6458856544609 is 9064456588546.

It is a happy number.

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 6458856544609 - 2¹³ = 6458856536417 is a prime.

It is a super-2 number, since 2×6458856544609² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6458856541609) 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, 263163369 + ... + 263187910.

It is an arithmetic number, because the mean of its divisors is an integer number (923220145120).

Almost surely, 2^{6458856544609} is an apocalyptic number.

It is an amenable number.

6458856544609 is a deficient number, since it is larger than the sum of its proper divisors (926904616351).

6458856544609 is a wasteful number, since it uses less digits than its factorization.

6458856544609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526353039.

The product of its (nonzero) digits is 995328000, while the sum is 70.

The spelling of 6458856544609 in words is "six trillion, four hundred fifty-eight billion, eight hundred fifty-six million, five hundred forty-four thousand, six hundred nine".