6422709561 has 16 divisors (see below), whose sum is σ = 8692012800. Its totient is φ = 4218054608.

The previous prime is 6422709521. The next prime is 6422709563. The reversal of 6422709561 is 1659072246.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6422709561 is a prime.

It is a super-3 number, since 3×6422709561³ (a number of 30 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (6422709563) 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, 1570 + ... + 113348.

It is an arithmetic number, because the mean of its divisors is an integer number (543250800).

Almost surely, 2^6422709561 is an apocalyptic number.

It is an amenable number.

6422709561 is a deficient number, since it is larger than the sum of its proper divisors (2269303239).

6422709561 is a wasteful number, since it uses less digits than its factorization.

6422709561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112068.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 6422709561 is about 80141.8090699230. The cubic root of 6422709561 is about 1858.8289504021.

The spelling of 6422709561 in words is "six billion, four hundred twenty-two million, seven hundred nine thousand, five hundred sixty-one".