6221031968 has 54 divisors (see below), whose sum is σ = 12483085797. Its totient is φ = 3051843840.

The previous prime is 6221031931. The next prime is 6221031977. The reversal of 6221031968 is 8691301226.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 6192430864 + 28601104 = 78692^2 + 5348^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=55772.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 32570753 + ... + 32570943.

Almost surely, 2^6221031968 is an apocalyptic number.

It is an amenable number.

6221031968 is an abundant number, since it is smaller than the sum of its proper divisors (6262053829).

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

6221031968 is an frugal number, since it uses more digits than its factorization.

6221031968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538 (or 266 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 6221031968 is about 78873.5188006723. The cubic root of 6221031968 is about 1839.1654974484.

The spelling of 6221031968 in words is "six billion, two hundred twenty-one million, thirty-one thousand, nine hundred sixty-eight".