4647651840 has 480 divisors, whose sum is σ = 17695117440. Its totient is φ = 1120370688.

The previous prime is 4647651797. The next prime is 4647651847. The reversal of 4647651840 is 481567464.

4647651840 is a `hidden beast` number, since 4 + 64 + 76 + 518 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (480).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (4647651847) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17671549 + ... + 17671811.

It is an arithmetic number, because the mean of its divisors is an integer number (36864828).

Almost surely, 2^4647651840 is an apocalyptic number.

4647651840 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 4647651840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8847558720).

4647651840 is an abundant number, since it is smaller than the sum of its proper divisors (13047465600).

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

4647651840 is a wasteful number, since it uses less digits than its factorization.

4647651840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364 (or 345 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The square root of 4647651840 is about 68173.6887662682. The cubic root of 4647651840 is about 1668.8265316919.

The spelling of 4647651840 in words is "four billion, six hundred forty-seven million, six hundred fifty-one thousand, eight hundred forty".