4821865856 has 32 divisors (see below), whose sum is σ = 10171127880. Its totient is φ = 2269112320.

The previous prime is 4821865831. The next prime is 4821865897. The reversal of 4821865856 is 6585681284.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×4821865856² = 46500780666517225472, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4821865798 and 4821865807.

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 3 ways as a sum of consecutive naturals, for example, 1105790 + ... + 1110141.

Almost surely, 2^4821865856 is an apocalyptic number.

It is an amenable number.

4821865856 is an abundant number, since it is smaller than the sum of its proper divisors (5349262024).

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

4821865856 is a wasteful number, since it uses less digits than its factorization.

4821865856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2215962 (or 2215950 counting only the distinct ones).

The product of its digits is 3686400, while the sum is 53.

The square root of 4821865856 is about 69439.6562203472. The cubic root of 4821865856 is about 1689.4228922437.

The spelling of 4821865856 in words is "four billion, eight hundred twenty-one million, eight hundred sixty-five thousand, eight hundred fifty-six".