6464366647 has 4 divisors (see below), whose sum is σ = 6465857400. Its totient is φ = 6462875896.

The previous prime is 6464366641. The next prime is 6464366653. The reversal of 6464366647 is 7466634646.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (6464366641) and next prime (6464366653).

It is a cyclic number.

It is not a de Polignac number, because 6464366647 - 2²⁷ = 6330148919 is a prime.

It is a super-3 number, since 3×6464366647³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6464366594 and 6464366603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6464366641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 738853 + ... + 747550.

It is an arithmetic number, because the mean of its divisors is an integer number (1616464350).

Almost surely, 2^6464366647 is an apocalyptic number.

6464366647 is a deficient number, since it is larger than the sum of its proper divisors (1490753).

6464366647 is a wasteful number, since it uses less digits than its factorization.

6464366647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1490752.

The product of its digits is 10450944, while the sum is 52.

The square root of 6464366647 is about 80401.2851078887. The cubic root of 6464366647 is about 1862.8390227231.

The spelling of 6464366647 in words is "six billion, four hundred sixty-four million, three hundred sixty-six thousand, six hundred forty-seven".