6464244000 has 192 divisors, whose sum is σ = 21861245952. Its totient is φ = 1668096000.

The previous prime is 6464243983. The next prime is 6464244023. The reversal of 6464244000 is 4424646.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 363312 + ... + 380688.

It is an arithmetic number, because the mean of its divisors is an integer number (113860656).

Almost surely, 2^6464244000 is an apocalyptic number.

6464244000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6464244000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10930622976).

6464244000 is an abundant number, since it is smaller than the sum of its proper divisors (15397001952).

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

6464244000 is a wasteful number, since it uses less digits than its factorization.

6464244000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17436 (or 17418 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

The square root of 6464244000 is about 80400.5223863626. The cubic root of 6464244000 is about 1862.8272415708.

Adding to 6464244000 its reverse (4424646), we get a palindrome (6468668646).

The spelling of 6464244000 in words is "six billion, four hundred sixty-four million, two hundred forty-four thousand".