9378221552 has 80 divisors (see below), whose sum is σ = 22185603840. Its totient is φ = 3750810624.

The previous prime is 9378221537. The next prime is 9378221561. The reversal of 9378221552 is 2551228739.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109688 + ... + 175464.

It is an arithmetic number, because the mean of its divisors is an integer number (277320048).

Almost surely, 2^9378221552 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 9378221552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11092801920).

9378221552 is an abundant number, since it is smaller than the sum of its proper divisors (12807382288).

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

9378221552 is a wasteful number, since it uses less digits than its factorization.

9378221552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65878 (or 65872 counting only the distinct ones).

The product of its digits is 302400, while the sum is 44.

The square root of 9378221552 is about 96841.2182492558. The cubic root of 9378221552 is about 2108.8231611223.

The spelling of 9378221552 in words is "nine billion, three hundred seventy-eight million, two hundred twenty-one thousand, five hundred fifty-two".