6916855906 has 8 divisors (see below), whose sum is σ = 10380136284. Its totient is φ = 3456810480.

The previous prime is 6916855903. The next prime is 6916855949. The reversal of 6916855906 is 6095586196.

It can be written as a sum of positive squares in 2 ways, for example, as 4932955225 + 1983900681 = 70235^2 + 44541^2 .

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

It is not an unprimeable number, because it can be changed into a prime (6916855903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 803385 + ... + 811948.

Almost surely, 2^6916855906 is an apocalyptic number.

6916855906 is a deficient number, since it is larger than the sum of its proper divisors (3463280378).

6916855906 is a wasteful number, since it uses less digits than its factorization.

6916855906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1617476.

The product of its (nonzero) digits is 3499200, while the sum is 55.

The square root of 6916855906 is about 83167.6373717566. The cubic root of 6916855906 is about 1905.3272383973.

The spelling of 6916855906 in words is "six billion, nine hundred sixteen million, eight hundred fifty-five thousand, nine hundred six".