6479024607221 has 4 divisors (see below), whose sum is σ = 6484866830700. Its totient is φ = 6473182383744.

The previous prime is 6479024607217. The next prime is 6479024607227. The reversal of 6479024607221 is 1227064209746.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 48185079121 + 6430839528100 = 219511^2 + 2535910^2 .

It is a cyclic number.

It is not a de Polignac number, because 6479024607221 - 2² = 6479024607217 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6479024607221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6479024607227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2921110076 + ... + 2921112293.

It is an arithmetic number, because the mean of its divisors is an integer number (1621216707675).

Almost surely, 2^{6479024607221} is an apocalyptic number.

It is an amenable number.

6479024607221 is a deficient number, since it is larger than the sum of its proper divisors (5842223479).

6479024607221 is a wasteful number, since it uses less digits than its factorization.

6479024607221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5842223478.

The product of its (nonzero) digits is 2032128, while the sum is 50.

The spelling of 6479024607221 in words is "six trillion, four hundred seventy-nine billion, twenty-four million, six hundred seven thousand, two hundred twenty-one".