6721846272 has 66 divisors (see below), whose sum is σ = 19409211848. Its totient is φ = 2240612352.

The previous prime is 6721846253. The next prime is 6721846273. The reversal of 6721846272 is 2726481276.

It is a happy number.

6721846272 is a `hidden beast` number, since 6 + 7 + 2 + 18 + 4 + 627 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6721846273) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 355468 + ... + 373899.

Almost surely, 2^6721846272 is an apocalyptic number.

It is an amenable number.

6721846272 is an abundant number, since it is smaller than the sum of its proper divisors (12687365576).

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

6721846272 is a wasteful number, since it uses less digits than its factorization.

6721846272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729393 (or 729372 counting only the distinct ones).

The product of its digits is 451584, while the sum is 45.

The square root of 6721846272 is about 81986.8664604277. The cubic root of 6721846272 is about 1887.2503966651.

The spelling of 6721846272 in words is "six billion, seven hundred twenty-one million, eight hundred forty-six thousand, two hundred seventy-two".