6721327650 has 24 divisors (see below), whose sum is σ = 16668892944. Its totient is φ = 1792354000.

The previous prime is 6721327609. The next prime is 6721327673. The reversal of 6721327650 is 567231276.

It is a junction number, because it is equal to n+sod(n) for n = 6721327599 and 6721327608.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22404276 + ... + 22404575.

It is an arithmetic number, because the mean of its divisors is an integer number (694537206).

Almost surely, 2^6721327650 is an apocalyptic number.

6721327650 is an abundant number, since it is smaller than the sum of its proper divisors (9947565294).

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

6721327650 is a wasteful number, since it uses less digits than its factorization.

6721327650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44808866 (or 44808861 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 39.

The square root of 6721327650 is about 81983.7035635741. The cubic root of 6721327650 is about 1887.2018586737.

The spelling of 6721327650 in words is "six billion, seven hundred twenty-one million, three hundred twenty-seven thousand, six hundred fifty".