6633428673 has 4 divisors (see below), whose sum is σ = 8844571568. Its totient is φ = 4422285780.

The previous prime is 6633428671. The next prime is 6633428677. The reversal of 6633428673 is 3768243366.

6633428673 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 6633428673 - 2¹ = 6633428671 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6633428671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1105571443 + ... + 1105571448.

It is an arithmetic number, because the mean of its divisors is an integer number (2211142892).

Almost surely, 2^6633428673 is an apocalyptic number.

It is an amenable number.

6633428673 is a deficient number, since it is larger than the sum of its proper divisors (2211142895).

6633428673 is a wasteful number, since it uses less digits than its factorization.

6633428673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2211142894.

The product of its digits is 2612736, while the sum is 48.

The square root of 6633428673 is about 81445.8634492876. The cubic root of 6633428673 is about 1878.9390302446.

The spelling of 6633428673 in words is "six billion, six hundred thirty-three million, four hundred twenty-eight thousand, six hundred seventy-three".