6623874539 has 4 divisors (see below), whose sum is σ = 6624048024. Its totient is φ = 6623701056.

The previous prime is 6623874529. The next prime is 6623874541. The reversal of 6623874539 is 9354783266.

It is a happy number.

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 6623874539 - 2¹² = 6623870443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6623874529) 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 3 ways as a sum of consecutive naturals, for example, 1637 + ... + 115110.

It is an arithmetic number, because the mean of its divisors is an integer number (1656012006).

Almost surely, 2^6623874539 is an apocalyptic number.

6623874539 is a deficient number, since it is larger than the sum of its proper divisors (173485).

6623874539 is a wasteful number, since it uses less digits than its factorization.

6623874539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173484.

The product of its digits is 6531840, while the sum is 53.

The square root of 6623874539 is about 81387.1890348844. The cubic root of 6623874539 is about 1878.0365175498.

The spelling of 6623874539 in words is "six billion, six hundred twenty-three million, eight hundred seventy-four thousand, five hundred thirty-nine".