5979921021 has 12 divisors (see below), whose sum is σ = 8644289472. Its totient is φ = 3983555976.

The previous prime is 5979921011. The next prime is 5979921023. The reversal of 5979921021 is 1201299795.

It is not a de Polignac number, because 5979921021 - 2⁶ = 5979920957 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5979921023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 242421 + ... + 265946.

It is an arithmetic number, because the mean of its divisors is an integer number (720357456).

Almost surely, 2^5979921021 is an apocalyptic number.

It is an amenable number.

5979921021 is a deficient number, since it is larger than the sum of its proper divisors (2664368451).

5979921021 is a wasteful number, since it uses less digits than its factorization.

5979921021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509680 (or 509677 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 45.

The square root of 5979921021 is about 77329.9490559770. The cubic root of 5979921021 is about 1815.0913316061.

The spelling of 5979921021 in words is "five billion, nine hundred seventy-nine million, nine hundred twenty-one thousand, twenty-one".