10378221648 has 160 divisors (see below), whose sum is σ = 29529360000. Its totient is φ = 3128057856.

The previous prime is 10378221647. The next prime is 10378221653. The reversal of 10378221648 is 84612287301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10378221647) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2351668 + ... + 2356076.

It is an arithmetic number, because the mean of its divisors is an integer number (184558500).

Almost surely, 2^10378221648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10378221648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14764680000).

10378221648 is an abundant number, since it is smaller than the sum of its proper divisors (19151138352).

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

10378221648 is a wasteful number, since it uses less digits than its factorization.

10378221648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4557 (or 4551 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The spelling of 10378221648 in words is "ten billion, three hundred seventy-eight million, two hundred twenty-one thousand, six hundred forty-eight".