6729441620 has 36 divisors (see below), whose sum is σ = 15533336532. Its totient is φ = 2447068800.

The previous prime is 6729441599. The next prime is 6729441629. The reversal of 6729441620 is 261449276.

It can be written as a sum of positive squares in 2 ways, for example, as 1271778244 + 5457663376 = 35662^2 + 73876^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6729441629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1387961 + ... + 1392800.

Almost surely, 2^6729441620 is an apocalyptic number.

It is an amenable number.

6729441620 is an abundant number, since it is smaller than the sum of its proper divisors (8803894912).

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

6729441620 is a wasteful number, since it uses less digits than its factorization.

6729441620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2780792 (or 2780779 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 6729441620 is about 82033.1738993439. The cubic root of 6729441620 is about 1887.9609617545.

The spelling of 6729441620 in words is "six billion, seven hundred twenty-nine million, four hundred forty-one thousand, six hundred twenty".