5279321680 has 20 divisors (see below), whose sum is σ = 12274423092. Its totient is φ = 2111728640.

The previous prime is 5279321633. The next prime is 5279321681. The reversal of 5279321680 is 861239725.

It can be written as a sum of positive squares in 2 ways, for example, as 4096512016 + 1182809664 = 64004^2 + 34392^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5279321681) 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, 32995681 + ... + 32995840.

Almost surely, 2^5279321680 is an apocalyptic number.

It is an amenable number.

5279321680 is an abundant number, since it is smaller than the sum of its proper divisors (6995101412).

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

5279321680 is a wasteful number, since it uses less digits than its factorization.

5279321680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65991534 (or 65991528 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 5279321680 is about 72658.9408125387. The cubic root of 5279321680 is about 1741.2429661957.

The spelling of 5279321680 in words is "five billion, two hundred seventy-nine million, three hundred twenty-one thousand, six hundred eighty".