4815643904 has 36 divisors (see below), whose sum is σ = 9634402176. Its totient is φ = 2402330112.

The previous prime is 4815643849. The next prime is 4815643913. The reversal of 4815643904 is 4093465184.

It is a super-2 number, since 2×4815643904² = 46380852420264722432, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92177 + ... + 134639.

Almost surely, 2^4815643904 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 4815643904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4817201088).

4815643904 is an abundant number, since it is smaller than the sum of its proper divisors (4818758272).

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

4815643904 is an equidigital number, since it uses as much as digits as its factorization.

4815643904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42922 (or 42908 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 44.

The square root of 4815643904 is about 69394.8406151351. The cubic root of 4815643904 is about 1688.6959238240.

The spelling of 4815643904 in words is "four billion, eight hundred fifteen million, six hundred forty-three thousand, nine hundred four".