4663578920 has 256 divisors, whose sum is σ = 14382144000. Its totient is φ = 1341204480.

The previous prime is 4663578919. The next prime is 4663578973. The reversal of 4663578920 is 298753664.

It is a happy number.

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, 1960772 + ... + 1963148.

It is an arithmetic number, because the mean of its divisors is an integer number (56180250).

Almost surely, 2^4663578920 is an apocalyptic number.

4663578920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4663578920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7191072000).

4663578920 is an abundant number, since it is smaller than the sum of its proper divisors (9718565080).

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

4663578920 is a wasteful number, since it uses less digits than its factorization.

4663578920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2433 (or 2415 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 50.

The square root of 4663578920 is about 68290.4013753031. The cubic root of 4663578920 is about 1670.7306638129.

The spelling of 4663578920 in words is "four billion, six hundred sixty-three million, five hundred seventy-eight thousand, nine hundred twenty".