6464422680 has 64 divisors (see below), whose sum is σ = 19478037600. Its totient is φ = 1716311040.

The previous prime is 6464422637. The next prime is 6464422681. The reversal of 6464422680 is 862244646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6464422681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90141 + ... + 145100.

Almost surely, 2^6464422680 is an apocalyptic number.

6464422680 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6464422680 is an abundant number, since it is smaller than the sum of its proper divisors (13013614920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6464422680 is a wasteful number, since it uses less digits than its factorization.

6464422680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235484 (or 235480 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 42.

The square root of 6464422680 is about 80401.6335654942. The cubic root of 6464422680 is about 1862.8444050579.

The spelling of 6464422680 in words is "six billion, four hundred sixty-four million, four hundred twenty-two thousand, six hundred eighty".