70851533328 has 140 divisors (see below), whose sum is σ = 206560119708. Its totient is φ = 23532042240.

The previous prime is 70851533297. The next prime is 70851533353. The reversal of 70851533328 is 82333515807.

70851533328 is a `hidden beast` number, since 7 + 0 + 85 + 1 + 533 + 32 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 29450678544 + 41400854784 = 171612^2 + 203472^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 3266776 + ... + 3288392.

Almost surely, 2^70851533328 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 70851533328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103280059854).

70851533328 is an abundant number, since it is smaller than the sum of its proper divisors (135708586380).

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

70851533328 is a wasteful number, since it uses less digits than its factorization.

70851533328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21924 (or 21903 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The spelling of 70851533328 in words is "seventy billion, eight hundred fifty-one million, five hundred thirty-three thousand, three hundred twenty-eight".