6733986021 has 24 divisors (see below), whose sum is σ = 11120341440. Its totient is φ = 3846635136.

The previous prime is 6733986011. The next prime is 6733986041. The reversal of 6733986021 is 1206893376.

6733986021 is a `hidden beast` number, since 6 + 7 + 3 + 39 + 8 + 602 + 1 = 666.

It is not a de Polignac number, because 6733986021 - 2⁷ = 6733985893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6733986011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 177306 + ... + 211908.

It is an arithmetic number, because the mean of its divisors is an integer number (463347560).

Almost surely, 2^6733986021 is an apocalyptic number.

It is an amenable number.

6733986021 is a deficient number, since it is larger than the sum of its proper divisors (4386355419).

6733986021 is a wasteful number, since it uses less digits than its factorization.

6733986021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37705 (or 37702 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 6733986021 is about 82060.8677811781. The cubic root of 6733986021 is about 1888.3858469880.

The spelling of 6733986021 in words is "six billion, seven hundred thirty-three million, nine hundred eighty-six thousand, twenty-one".