6387688212 has 24 divisors (see below), whose sum is σ = 14951632416. Its totient is φ = 2122511328.

The previous prime is 6387688201. The next prime is 6387688283. The reversal of 6387688212 is 2128867836.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 835798 + ... + 843405.

It is an arithmetic number, because the mean of its divisors is an integer number (622984684).

Almost surely, 2^6387688212 is an apocalyptic number.

It is an amenable number.

6387688212 is an abundant number, since it is smaller than the sum of its proper divisors (8563944204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6387688212 is a wasteful number, since it uses less digits than its factorization.

6387688212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1679527 (or 1679525 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 51.

The square root of 6387688212 is about 79923.0142824956. The cubic root of 6387688212 is about 1855.4442221676. Note that the first 3 decimals are identical.

The spelling of 6387688212 in words is "six billion, three hundred eighty-seven million, six hundred eighty-eight thousand, two hundred twelve".