6622378884 has 189 divisors, whose sum is σ = 19239441781. Its totient is φ = 1992133440.

The previous prime is 6622378877. The next prime is 6622378907. The reversal of 6622378884 is 4888732266.

The square root of 6622378884 is 81378.

It is a perfect power (a square), and thus also a powerful number.

6622378884 is a `hidden beast` number, since 6 + 622 + 3 + 7 + 8 + 8 + 8 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3890016900 + 2732361984 = 62370^2 + 52272^2 .

It is a super-3 number, since 3×6622378884³ (a number of 30 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6622378884.

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 62 ways as a sum of consecutive naturals, for example, 48338464 + ... + 48338600.

Almost surely, 2^6622378884 is an apocalyptic number.

6622378884 is the 81378-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6622378884

6622378884 is an abundant number, since it is smaller than the sum of its proper divisors (12617062897).

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

6622378884 is a wasteful number, since it uses less digits than its factorization.

6622378884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318 (or 153 counting only the distinct ones).

The product of its digits is 6193152, while the sum is 54.

The cubic root of 6622378884 is about 1877.8951548609.

The spelling of 6622378884 in words is "six billion, six hundred twenty-two million, three hundred seventy-eight thousand, eight hundred eighty-four".