6328961620 has 24 divisors (see below), whose sum is σ = 14072633064. Its totient is φ = 2382667776.

The previous prime is 6328961563. The next prime is 6328961621. The reversal of 6328961620 is 261698236.

It can be written as a sum of positive squares in 4 ways, for example, as 502387396 + 5826574224 = 22414^2 + 76332^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6328961621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9306957 + ... + 9307636.

It is an arithmetic number, because the mean of its divisors is an integer number (586359711).

Almost surely, 2^6328961620 is an apocalyptic number.

It is an amenable number.

6328961620 is an abundant number, since it is smaller than the sum of its proper divisors (7743671444).

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

6328961620 is a wasteful number, since it uses less digits than its factorization.

6328961620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18614619 (or 18614617 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 6328961620 is about 79554.7711956989. The cubic root of 6328961620 is about 1849.7405645449.

The spelling of 6328961620 in words is "six billion, three hundred twenty-eight million, nine hundred sixty-one thousand, six hundred twenty".