6437220000 has 240 divisors, whose sum is σ = 22360992192. Its totient is φ = 1615360000.

The previous prime is 6437219953. The next prime is 6437220011. The reversal of 6437220000 is 227346.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1016845 + ... + 1023155.

Almost surely, 2^6437220000 is an apocalyptic number.

6437220000 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 6437220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11180496096).

6437220000 is an abundant number, since it is smaller than the sum of its proper divisors (15923772192).

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

6437220000 is a wasteful number, since it uses less digits than its factorization.

6437220000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6361 (or 6338 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 6437220000 is about 80232.2877649641. The cubic root of 6437220000 is about 1860.2277441099.

Adding to 6437220000 its reverse (227346), we get a palindrome (6437447346).

The spelling of 6437220000 in words is "six billion, four hundred thirty-seven million, two hundred twenty thousand".