6424640099 has 8 divisors (see below), whose sum is σ = 6584131008. Its totient is φ = 6265282240.

The previous prime is 6424640093. The next prime is 6424640143. The reversal of 6424640099 is 9900464246.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6424640099 - 2⁸ = 6424639843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6424640093) 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 7 ways as a sum of consecutive naturals, for example, 68309 + ... + 132345.

It is an arithmetic number, because the mean of its divisors is an integer number (823016376).

Almost surely, 2^6424640099 is an apocalyptic number.

6424640099 is a deficient number, since it is larger than the sum of its proper divisors (159490909).

6424640099 is a wasteful number, since it uses less digits than its factorization.

6424640099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66525.

The product of its (nonzero) digits is 373248, while the sum is 44.

The square root of 6424640099 is about 80153.8526772107. The cubic root of 6424640099 is about 1859.0151740097.

The spelling of 6424640099 in words is "six billion, four hundred twenty-four million, six hundred forty thousand, ninety-nine".