6682029621 has 16 divisors (see below), whose sum is σ = 9494544384. Its totient is φ = 4170342704.

The previous prime is 6682029581. The next prime is 6682029647. The reversal of 6682029621 is 1269202866.

It is not a de Polignac number, because 6682029621 - 2²² = 6677835317 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6682029521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1026981 + ... + 1033466.

It is an arithmetic number, because the mean of its divisors is an integer number (593409024).

Almost surely, 2^6682029621 is an apocalyptic number.

It is an amenable number.

6682029621 is a deficient number, since it is larger than the sum of its proper divisors (2812514763).

6682029621 is a wasteful number, since it uses less digits than its factorization.

6682029621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2060520.

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 6682029621 is about 81743.6824531413. The cubic root of 6682029621 is about 1883.5166580170.

The spelling of 6682029621 in words is "six billion, six hundred eighty-two million, twenty-nine thousand, six hundred twenty-one".