70511857208 has 64 divisors (see below), whose sum is σ = 147361334400. Its totient is φ = 31406376960.

The previous prime is 70511857181. The next prime is 70511857249. The reversal of 70511857208 is 80275811507.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8051360 + ... + 8060112.

It is an arithmetic number, because the mean of its divisors is an integer number (2302520850).

Almost surely, 2^70511857208 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 70511857208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73680667200).

70511857208 is an abundant number, since it is smaller than the sum of its proper divisors (76849477192).

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

70511857208 is a wasteful number, since it uses less digits than its factorization.

70511857208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11472 (or 11468 counting only the distinct ones).

The product of its (nonzero) digits is 156800, while the sum is 44.

The spelling of 70511857208 in words is "seventy billion, five hundred eleven million, eight hundred fifty-seven thousand, two hundred eight".