6627677906 has 4 divisors (see below), whose sum is σ = 9941516862. Its totient is φ = 3313838952.

The previous prime is 6627677879. The next prime is 6627677909. The reversal of 6627677906 is 6097767266.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 3649247281 + 2978430625 = 60409^2 + 54575^2 .

It is a super-2 number, since 2×6627677906² = 87852228851361089672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6627677909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1656919475 + ... + 1656919478.

Almost surely, 2^6627677906 is an apocalyptic number.

6627677906 is a deficient number, since it is larger than the sum of its proper divisors (3313838956).

6627677906 is a wasteful number, since it uses less digits than its factorization.

6627677906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3313838955.

The product of its (nonzero) digits is 8001504, while the sum is 56.

The square root of 6627677906 is about 81410.5515642782. The cubic root of 6627677906 is about 1878.3958991267.

The spelling of 6627677906 in words is "six billion, six hundred twenty-seven million, six hundred seventy-seven thousand, nine hundred six".