2078856570 has 128 divisors (see below), whose sum is σ = 5871439872. Its totient is φ = 461260800.

The previous prime is 2078856569. The next prime is 2078856599. The reversal of 2078856570 is 756588702.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 997930 + ... + 1000010.

It is an arithmetic number, because the mean of its divisors is an integer number (45870624).

Almost surely, 2^2078856570 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2078856570, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2935719936).

2078856570 is an abundant number, since it is smaller than the sum of its proper divisors (3792583302).

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

2078856570 is a wasteful number, since it uses less digits than its factorization.

2078856570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2236.

The product of its (nonzero) digits is 940800, while the sum is 48.

The square root of 2078856570 is about 45594.4796000568. The cubic root of 2078856570 is about 1276.2669083428.

The spelling of 2078856570 in words is "two billion, seventy-eight million, eight hundred fifty-six thousand, five hundred seventy".