6212687878 has 16 divisors (see below), whose sum is σ = 9497457360. Its totient is φ = 3046900896.

The previous prime is 6212687869. The next prime is 6212687881. The reversal of 6212687878 is 8787862126.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 594676 + ... + 605032.

It is an arithmetic number, because the mean of its divisors is an integer number (593591085).

Almost surely, 2^6212687878 is an apocalyptic number.

6212687878 is a deficient number, since it is larger than the sum of its proper divisors (3284769482).

6212687878 is a wasteful number, since it uses less digits than its factorization.

6212687878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16071.

The product of its digits is 3612672, while the sum is 55.

The square root of 6212687878 is about 78820.6056688224. The cubic root of 6212687878 is about 1838.3428564057.

The spelling of 6212687878 in words is "six billion, two hundred twelve million, six hundred eighty-seven thousand, eight hundred seventy-eight".