6820559612 has 48 divisors (see below), whose sum is σ = 12632481792. Its totient is φ = 3217631040.

The previous prime is 6820559609. The next prime is 6820559617. The reversal of 6820559612 is 2169550286.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6820559617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1068053 + ... + 1074419.

It is an arithmetic number, because the mean of its divisors is an integer number (263176704).

Almost surely, 2^6820559612 is an apocalyptic number.

6820559612 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

6820559612 is a deficient number, since it is larger than the sum of its proper divisors (5811922180).

6820559612 is a wasteful number, since it uses less digits than its factorization.

6820559612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6618 (or 6616 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 44.

The square root of 6820559612 is about 82586.6793859639. The cubic root of 6820559612 is about 1896.4439128496.

The spelling of 6820559612 in words is "six billion, eight hundred twenty million, five hundred fifty-nine thousand, six hundred twelve".