6344991360 has 256 divisors, whose sum is σ = 22546080000. Its totient is φ = 1686417408.

The previous prime is 6344991349. The next prime is 6344991383. The reversal of 6344991360 is 631994436.

6344991360 is a `hidden beast` number, since 63 + 449 + 91 + 3 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 10350414 + ... + 10351026.

It is an arithmetic number, because the mean of its divisors is an integer number (88070625).

Almost surely, 2^6344991360 is an apocalyptic number.

6344991360 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 6344991360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11273040000).

6344991360 is an abundant number, since it is smaller than the sum of its proper divisors (16201088640).

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

6344991360 is a wasteful number, since it uses less digits than its factorization.

6344991360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1240 (or 1222 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 45.

The square root of 6344991360 is about 79655.4540505545. The cubic root of 6344991360 is about 1851.3008975255.

It can be divided in two parts, 634 and 4991360, that added together give a palindrome (4991994).

The spelling of 6344991360 in words is "six billion, three hundred forty-four million, nine hundred ninety-one thousand, three hundred sixty".