7068529728 has 336 divisors, whose sum is σ = 23159858176. Its totient is φ = 2045399040.

The previous prime is 7068529711. The next prime is 7068529813. The reversal of 7068529728 is 8279258607.

It is a happy number.

It is a super-2 number, since 2×7068529728² = 99928225031239507968, which contains 22 as substring.

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, 8588325 + ... + 8589147.

Almost surely, 2^7068529728 is an apocalyptic number.

7068529728 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 7068529728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11579929088).

7068529728 is an abundant number, since it is smaller than the sum of its proper divisors (16091328448).

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

7068529728 is a wasteful number, since it uses less digits than its factorization.

7068529728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922 (or 909 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 54.

The square root of 7068529728 is about 84074.5486339356. The cubic root of 7068529728 is about 1919.1534288660.

The spelling of 7068529728 in words is "seven billion, sixty-eight million, five hundred twenty-nine thousand, seven hundred twenty-eight".