7097171328 has 384 divisors, whose sum is σ = 22936193280. Its totient is φ = 2092511232.

The previous prime is 7097171311. The next prime is 7097171351. The reversal of 7097171328 is 8231717907.

7097171328 is a `hidden beast` number, since 70 + 97 + 171 + 328 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is a congruent 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, 66328651 + ... + 66328757.

It is an arithmetic number, because the mean of its divisors is an integer number (59729670).

Almost surely, 2^7097171328 is an apocalyptic number.

7097171328 is a gapful number since it is divisible by the number (78) 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 7097171328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11468096640).

7097171328 is an abundant number, since it is smaller than the sum of its proper divisors (15839021952).

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

7097171328 is a wasteful number, since it uses less digits than its factorization.

7097171328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286 (or 271 counting only the distinct ones).

The product of its (nonzero) digits is 148176, while the sum is 45.

The square root of 7097171328 is about 84244.7109793843. The cubic root of 7097171328 is about 1921.7420647357.

The spelling of 7097171328 in words is "seven billion, ninety-seven million, one hundred seventy-one thousand, three hundred twenty-eight".