6128968821 has 8 divisors (see below), whose sum is σ = 8283903360. Its totient is φ = 4030006752.

The previous prime is 6128968817. The next prime is 6128968829. The reversal of 6128968821 is 1288698216.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6128968821 - 2² = 6128968817 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6128968829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13992861 + ... + 13993298.

It is an arithmetic number, because the mean of its divisors is an integer number (1035487920).

Almost surely, 2^6128968821 is an apocalyptic number.

It is an amenable number.

6128968821 is a deficient number, since it is larger than the sum of its proper divisors (2154934539).

6128968821 is a wasteful number, since it uses less digits than its factorization.

6128968821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27986235.

The product of its digits is 663552, while the sum is 51.

The square root of 6128968821 is about 78287.7309736334. The cubic root of 6128968821 is about 1830.0479568787.

The spelling of 6128968821 in words is "six billion, one hundred twenty-eight million, nine hundred sixty-eight thousand, eight hundred twenty-one".