6380698909 has 4 divisors (see below), whose sum is σ = 6871521916. Its totient is φ = 5889875904.

The previous prime is 6380698903. The next prime is 6380698913. The reversal of 6380698909 is 9098960836.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1150227225 + 5230471684 = 33915^2 + 72322^2 .

It is a cyclic number.

It is not a de Polignac number, because 6380698909 - 2²⁵ = 6347144477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6380698903) 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 3 ways as a sum of consecutive naturals, for example, 245411484 + ... + 245411509.

It is an arithmetic number, because the mean of its divisors is an integer number (1717880479).

Almost surely, 2^6380698909 is an apocalyptic number.

It is an amenable number.

6380698909 is a deficient number, since it is larger than the sum of its proper divisors (490823007).

6380698909 is a wasteful number, since it uses less digits than its factorization.

6380698909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490823006.

The product of its (nonzero) digits is 5038848, while the sum is 58.

The square root of 6380698909 is about 79879.2770936242. The cubic root of 6380698909 is about 1854.7672430477.

The spelling of 6380698909 in words is "six billion, three hundred eighty million, six hundred ninety-eight thousand, nine hundred nine".