64438448226600 has 768 divisors, whose sum is σ = 237121760378880. Its totient is φ = 14168867328000.

The previous prime is 64438448226547. The next prime is 64438448226601. The reversal of 64438448226600 is 662284483446.

It is not an unprimeable number, because it can be changed into a prime (64438448226601) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 11220343329 + ... + 11220349071.

It is an arithmetic number, because the mean of its divisors is an integer number (308752292160).

Almost surely, 2^{64438448226600} is an apocalyptic number.

64438448226600 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 64438448226600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118560880189440).

64438448226600 is an abundant number, since it is smaller than the sum of its proper divisors (172683312152280).

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

64438448226600 is a wasteful number, since it uses less digits than its factorization.

64438448226600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6610 (or 6601 counting only the distinct ones).

The product of its (nonzero) digits is 42467328, while the sum is 57.

The spelling of 64438448226600 in words is "sixty-four trillion, four hundred thirty-eight billion, four hundred forty-eight million, two hundred twenty-six thousand, six hundred".