2859929856 has 720 divisors, whose sum is σ = 11040543360. Its totient is φ = 716636160.

The previous prime is 2859929851. The next prime is 2859929879. The reversal of 2859929856 is 6589299582.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nialpdrome in base 16.

It is a zygodrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 2859929793 and 2859929802.

It is not an unprimeable number, because it can be changed into a prime (2859929851) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 46884066 + ... + 46884126.

It is an arithmetic number, because the mean of its divisors is an integer number (15334088).

Almost surely, 2^2859929856 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 2859929856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5520271680).

2859929856 is an abundant number, since it is smaller than the sum of its proper divisors (8180613504).

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

2859929856 is a wasteful number, since it uses less digits than its factorization.

2859929856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132 (or 109 counting only the distinct ones).

The product of its digits is 27993600, while the sum is 63.

The square root of 2859929856 is about 53478.3120152460. The cubic root of 2859929856 is about 1419.4446443005. Note that the first 3 decimals are identical.

The spelling of 2859929856 in words is "two billion, eight hundred fifty-nine million, nine hundred twenty-nine thousand, eight hundred fifty-six".