6219771288 has 64 divisors (see below), whose sum is σ = 16103750400. Its totient is φ = 1999509120.

The previous prime is 6219771223. The next prime is 6219771289. The reversal of 6219771288 is 8821779126.

It is a self number, because there is not a number n which added to its sum of digits gives 6219771288.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6219771289) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 679623 + ... + 688713.

It is an arithmetic number, because the mean of its divisors is an integer number (251621100).

Almost surely, 2^6219771288 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 6219771288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8051875200).

6219771288 is an abundant number, since it is smaller than the sum of its proper divisors (9883979112).

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

6219771288 is a wasteful number, since it uses less digits than its factorization.

6219771288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10112 (or 10108 counting only the distinct ones).

The product of its digits is 677376, while the sum is 51.

The square root of 6219771288 is about 78865.5266133436. The cubic root of 6219771288 is about 1839.0412546213.

The spelling of 6219771288 in words is "six billion, two hundred nineteen million, seven hundred seventy-one thousand, two hundred eighty-eight".