4647871620 has 72 divisors (see below), whose sum is σ = 16112625984. Its totient is φ = 1062370368.

The previous prime is 4647871619. The next prime is 4647871663. The reversal of 4647871620 is 261787464.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1843134 + ... + 1845653.

It is an arithmetic number, because the mean of its divisors is an integer number (223786472).

Almost surely, 2^4647871620 is an apocalyptic number.

It is an amenable number.

4647871620 is an abundant number, since it is smaller than the sum of its proper divisors (11464754364).

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

4647871620 is a wasteful number, since it uses less digits than its factorization.

4647871620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3688809 (or 3688804 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The square root of 4647871620 is about 68175.3006594030. The cubic root of 4647871620 is about 1668.8528366538.

The spelling of 4647871620 in words is "four billion, six hundred forty-seven million, eight hundred seventy-one thousand, six hundred twenty".