6128221879091 has 8 divisors (see below), whose sum is σ = 6663697578720. Its totient is φ = 5601899610432.

The previous prime is 6128221879081. The next prime is 6128221879093. The reversal of 6128221879091 is 1909781228216.

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

It is a cyclic number.

It is not a de Polignac number, because 6128221879091 - 2¹⁰ = 6128221878067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6128221879093) 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, 2288356346 + ... + 2288359023.

It is an arithmetic number, because the mean of its divisors is an integer number (832962197340).

Almost surely, 2^{6128221879091} is an apocalyptic number.

6128221879091 is a deficient number, since it is larger than the sum of its proper divisors (535475699629).

6128221879091 is a wasteful number, since it uses less digits than its factorization.

6128221879091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4576715485.

The product of its (nonzero) digits is 1741824, while the sum is 56.

The spelling of 6128221879091 in words is "six trillion, one hundred twenty-eight billion, two hundred twenty-one million, eight hundred seventy-nine thousand, ninety-one".