6221738884 has 9 divisors (see below), whose sum is σ = 10888319127. Its totient is φ = 3110790564.

The previous prime is 6221738839. The next prime is 6221738893. The reversal of 6221738884 is 4888371226.

The square root of 6221738884 is 78878.

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

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 138037 + ... + 177475.

Almost surely, 2^6221738884 is an apocalyptic number.

6221738884 is the 78878-th square number.

It is an amenable number.

6221738884 is a deficient number, since it is larger than the sum of its proper divisors (4666580243).

6221738884 is an frugal number, since it uses more digits than its factorization.

6221738884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78882 (or 39441 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 49.

The cubic root of 6221738884 is about 1839.2351582528.

Multiplying 6221738884 by its sum of digits (49), we get a square (304865205316 = 552146²).

It can be divided in two parts, 62217 and 38884, that added together give a palindrome (101101).

The spelling of 6221738884 in words is "six billion, two hundred twenty-one million, seven hundred thirty-eight thousand, eight hundred eighty-four".