7388221568 has 384 divisors, whose sum is σ = 19795507200. Its totient is φ = 2717245440.

The previous prime is 7388221523. The next prime is 7388221583. The reversal of 7388221568 is 8651228837.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 93521753 + ... + 93521831.

It is an arithmetic number, because the mean of its divisors is an integer number (51550800).

Almost surely, 2^7388221568 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 7388221568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9897753600).

7388221568 is an abundant number, since it is smaller than the sum of its proper divisors (12407285632).

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

7388221568 is a wasteful number, since it uses less digits than its factorization.

7388221568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188 (or 169 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 50.

The square root of 7388221568 is about 85954.7646614194. The cubic root of 7388221568 is about 1947.6607116390.

The spelling of 7388221568 in words is "seven billion, three hundred eighty-eight million, two hundred twenty-one thousand, five hundred sixty-eight".