6211866804 has 192 divisors, whose sum is σ = 17606356992. Its totient is φ = 1679270400.

The previous prime is 6211866781. The next prime is 6211866809. The reversal of 6211866804 is 4086681126.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6211866809) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 14412469 + ... + 14412899.

It is an arithmetic number, because the mean of its divisors is an integer number (91699776).

Almost surely, 2^6211866804 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6211866804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8803178496).

6211866804 is an abundant number, since it is smaller than the sum of its proper divisors (11394490188).

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

6211866804 is a wasteful number, since it uses less digits than its factorization.

6211866804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726 (or 724 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 42.

The square root of 6211866804 is about 78815.3969983023. The cubic root of 6211866804 is about 1838.2618671971.

The spelling of 6211866804 in words is "six billion, two hundred eleven million, eight hundred sixty-six thousand, eight hundred four".