6549422623 has 4 divisors (see below), whose sum is σ = 6554544640. Its totient is φ = 6544300608.

The previous prime is 6549422597. The next prime is 6549422647. The reversal of 6549422623 is 3262249456.

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

It is a cyclic number.

It is not a de Polignac number, because 6549422623 - 2⁵ = 6549422591 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 6549422623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6549422323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2559090 + ... + 2561647.

It is an arithmetic number, because the mean of its divisors is an integer number (1638636160).

Almost surely, 2^6549422623 is an apocalyptic number.

6549422623 is a deficient number, since it is larger than the sum of its proper divisors (5122017).

6549422623 is a wasteful number, since it uses less digits than its factorization.

6549422623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5122016.

The product of its digits is 622080, while the sum is 43.

The square root of 6549422623 is about 80928.5031555632. The cubic root of 6549422623 is about 1870.9736532161.

The spelling of 6549422623 in words is "six billion, five hundred forty-nine million, four hundred twenty-two thousand, six hundred twenty-three".