6728851500 has 288 divisors, whose sum is σ = 23089038336. Its totient is φ = 1518115200.

The previous prime is 6728851421. The next prime is 6728851523. The reversal of 6728851500 is 51588276.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6099949 + ... + 6101051.

It is an arithmetic number, because the mean of its divisors is an integer number (80170272).

Almost surely, 2^6728851500 is an apocalyptic number.

6728851500 is a gapful number since it is divisible by the number (60) 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 6728851500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11544519168).

6728851500 is an abundant number, since it is smaller than the sum of its proper divisors (16360186836).

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

6728851500 is a wasteful number, since it uses less digits than its factorization.

6728851500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1222 (or 1203 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 42.

The square root of 6728851500 is about 82029.5769829395. The cubic root of 6728851500 is about 1887.9057736148.

The spelling of 6728851500 in words is "six billion, seven hundred twenty-eight million, eight hundred fifty-one thousand, five hundred".