6623513709 has 16 divisors (see below), whose sum is σ = 8882058240. Its totient is φ = 4390352960.

The previous prime is 6623513707. The next prime is 6623513731. The reversal of 6623513709 is 9073153266.

It is a cyclic number.

It is not a de Polignac number, because 6623513709 - 2¹ = 6623513707 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6623513707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1244947 + ... + 1250255.

It is an arithmetic number, because the mean of its divisors is an integer number (555128640).

Almost surely, 2^6623513709 is an apocalyptic number.

It is an amenable number.

6623513709 is a deficient number, since it is larger than the sum of its proper divisors (2258544531).

6623513709 is a wasteful number, since it uses less digits than its factorization.

6623513709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7620.

The product of its (nonzero) digits is 204120, while the sum is 42.

The square root of 6623513709 is about 81384.9722553249. The cubic root of 6623513709 is about 1878.0024154435.

The spelling of 6623513709 in words is "six billion, six hundred twenty-three million, five hundred thirteen thousand, seven hundred nine".