4615865856 has 180 divisors, whose sum is σ = 15497431092. Its totient is φ = 1318754304.

The previous prime is 4615865851. The next prime is 4615865861. The reversal of 4615865856 is 6585685164.

4615865856 is a `hidden beast` number, since 4 + 6 + 1 + 58 + 6 + 585 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (4615865851) and next prime (4615865861).

It is a super-2 number, since 2×4615865856² = 42612435201173225472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4615865851) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 215571 + ... + 236013.

Almost surely, 2^4615865856 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 4615865856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7748715546).

4615865856 is an abundant number, since it is smaller than the sum of its proper divisors (10881565236).

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

4615865856 is a wasteful number, since it uses less digits than its factorization.

4615865856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20481 (or 20455 counting only the distinct ones).

The product of its digits is 6912000, while the sum is 54.

The square root of 4615865856 is about 67940.1637913834. The cubic root of 4615865856 is about 1665.0133743481.

The spelling of 4615865856 in words is "four billion, six hundred fifteen million, eight hundred sixty-five thousand, eight hundred fifty-six".