6740128020 has 48 divisors (see below), whose sum is σ = 19865643840. Its totient is φ = 1702768896.

The previous prime is 6740128019. The next prime is 6740128067. The reversal of 6740128020 is 208210476.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2955057 + ... + 2957336.

It is an arithmetic number, because the mean of its divisors is an integer number (413867580).

Almost surely, 2^6740128020 is an apocalyptic number.

6740128020 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6740128020 is an abundant number, since it is smaller than the sum of its proper divisors (13125515820).

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

6740128020 is a wasteful number, since it uses less digits than its factorization.

6740128020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5912424 (or 5912422 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 6740128020 is about 82098.2826860587. The cubic root of 6740128020 is about 1888.9597982582.

Adding to 6740128020 its reverse (208210476), we get a palindrome (6948338496).

The spelling of 6740128020 in words is "six billion, seven hundred forty million, one hundred twenty-eight thousand, twenty".