6464628264647 has 16 divisors (see below), whose sum is σ = 7447056752640. Its totient is φ = 5496935941728.

The previous prime is 6464628264613. The next prime is 6464628264727. The reversal of 6464628264647 is 7464628264646.

It is a happy number.

It is not a de Polignac number, because 6464628264647 - 2³⁶ = 6395908787911 is a prime.

It is a Smith number, since the sum of its digits (65) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6464628264247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8773229 + ... + 9481497.

It is an arithmetic number, because the mean of its divisors is an integer number (465441047040).

Almost surely, 2^{6464628264647} is an apocalyptic number.

6464628264647 is a deficient number, since it is larger than the sum of its proper divisors (982428487993).

6464628264647 is a wasteful number, since it uses less digits than its factorization.

6464628264647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718670.

The product of its digits is 445906944, while the sum is 65.

Subtracting 6464628264647 from its reverse (7464628264646), we obtain a palindrome (999999999999).

The spelling of 6464628264647 in words is "six trillion, four hundred sixty-four billion, six hundred twenty-eight million, two hundred sixty-four thousand, six hundred forty-seven".