6722431605 has 24 divisors (see below), whose sum is σ = 12158834688. Its totient is φ = 3429413856.

The previous prime is 6722431603. The next prime is 6722431637. The reversal of 6722431605 is 5061342276.

6722431605 is a `hidden beast` number, since 6 + 7 + 2 + 2 + 43 + 1 + 605 = 666.

It is not a de Polignac number, because 6722431605 - 2¹ = 6722431603 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6722431605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6722431603) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3246517 + ... + 3248586.

It is an arithmetic number, because the mean of its divisors is an integer number (506618112).

Almost surely, 2^6722431605 is an apocalyptic number.

It is an amenable number.

6722431605 is a deficient number, since it is larger than the sum of its proper divisors (5436403083).

6722431605 is a wasteful number, since it uses less digits than its factorization.

6722431605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6495137 (or 6495134 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 6722431605 is about 81990.4360581159. The cubic root of 6722431605 is about 1887.3051751604.

The spelling of 6722431605 in words is "six billion, seven hundred twenty-two million, four hundred thirty-one thousand, six hundred five".