6721247450600 has 24 divisors (see below), whose sum is σ = 15626900323110. Its totient is φ = 2688498980160.

The previous prime is 6721247450569. The next prime is 6721247450627. The reversal of 6721247450600 is 60547421276.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 5230176893764 + 1491070556836 = 2286958^2 + 1221094^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16803118427 + ... + 16803118826.

Almost surely, 2^{6721247450600} is an apocalyptic number.

It is an amenable number.

6721247450600 is an abundant number, since it is smaller than the sum of its proper divisors (8905652872510).

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

6721247450600 is a wasteful number, since it uses less digits than its factorization.

6721247450600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33606237269 (or 33606237260 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 44.

The spelling of 6721247450600 in words is "six trillion, seven hundred twenty-one billion, two hundred forty-seven million, four hundred fifty thousand, six hundred".