5978974521 has 16 divisors (see below), whose sum is σ = 8681662080. Its totient is φ = 3638025600.

The previous prime is 5978974513. The next prime is 5978974531. The reversal of 5978974521 is 1254798795.

It is not a de Polignac number, because 5978974521 - 2³ = 5978974513 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5978974501) 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 15 ways as a sum of consecutive naturals, for example, 857805 + ... + 864746.

It is an arithmetic number, because the mean of its divisors is an integer number (542603880).

Almost surely, 2^5978974521 is an apocalyptic number.

It is an amenable number.

5978974521 is a deficient number, since it is larger than the sum of its proper divisors (2702687559).

5978974521 is a wasteful number, since it uses less digits than its factorization.

5978974521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1722656.

The product of its digits is 6350400, while the sum is 57.

The square root of 5978974521 is about 77323.8289339063. The cubic root of 5978974521 is about 1814.9955625266.

The spelling of 5978974521 in words is "five billion, nine hundred seventy-eight million, nine hundred seventy-four thousand, five hundred twenty-one".