7121552328 has 192 divisors, whose sum is σ = 21811046400. Its totient is φ = 2080391040.

The previous prime is 7121552327. The next prime is 7121552341. The reversal of 7121552328 is 8232551217.

7121552328 is a `hidden beast` number, since 7 + 121 + 5 + 523 + 2 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 7121552292 and 7121552301.

It is not an unprimeable number, because it can be changed into a prime (7121552327) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2689101 + ... + 2691747.

It is an arithmetic number, because the mean of its divisors is an integer number (113599200).

Almost surely, 2^7121552328 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 7121552328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10905523200).

7121552328 is an abundant number, since it is smaller than the sum of its proper divisors (14689494072).

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

7121552328 is a wasteful number, since it uses less digits than its factorization.

7121552328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2792 (or 2785 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 7121552328 is about 84389.2903631735. The cubic root of 7121552328 is about 1923.9401443452.

The spelling of 7121552328 in words is "seven billion, one hundred twenty-one million, five hundred fifty-two thousand, three hundred twenty-eight".