6850427409 has 108 divisors (see below), whose sum is σ = 12365393040. Its totient is φ = 3633608160.

The previous prime is 6850427347. The next prime is 6850427413. The reversal of 6850427409 is 9047240586.

It is a happy number.

It is not a de Polignac number, because 6850427409 - 2⁸ = 6850427153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6850427609) 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 107 ways as a sum of consecutive naturals, for example, 52293274 + ... + 52293404.

It is an arithmetic number, because the mean of its divisors is an integer number (114494380).

Almost surely, 2^6850427409 is an apocalyptic number.

It is an amenable number.

6850427409 is a deficient number, since it is larger than the sum of its proper divisors (5514965631).

6850427409 is a wasteful number, since it uses less digits than its factorization.

6850427409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328 (or 239 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 6850427409 is about 82767.3088181560. The cubic root of 6850427409 is about 1899.2081103498.

The spelling of 6850427409 in words is "six billion, eight hundred fifty million, four hundred twenty-seven thousand, four hundred nine".