6226781603904 has 189 divisors, whose sum is σ = 17981628275559. Its totient is φ = 2060162611200.

The previous prime is 6226781603837. The next prime is 6226781603941. The reversal of 6226781603904 is 4093061876226.

The square root of 6226781603904 is 2495352.

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

6226781603904 is a `hidden beast` number, since 6 + 2 + 26 + 7 + 8 + 1 + 603 + 9 + 0 + 4 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 3543580353600 + 2683201250304 = 1882440^2 + 1638048^2 .

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 10360701204 + ... + 10360701804.

Almost surely, 2^{6226781603904} is an apocalyptic number.

6226781603904 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

6226781603904 is the 2495352-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6226781603904

6226781603904 is an abundant number, since it is smaller than the sum of its proper divisors (11754846671655).

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

6226781603904 is an frugal number, since it uses more digits than its factorization.

6226781603904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1566 (or 779 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 54.

The spelling of 6226781603904 in words is "six trillion, two hundred twenty-six billion, seven hundred eighty-one million, six hundred three thousand, nine hundred four".