6224378738 has 6 divisors (see below), whose sum is σ = 9336735471. Its totient is φ = 3112133582.

The previous prime is 6224378737. The next prime is 6224378801. The reversal of 6224378738 is 8378734226.

It can be written as a sum of positive squares in only one way, i.e., 3112189369 + 3112189369 = 55787^2 + 55787^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=55787.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6224378737) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 83681 + ... + 139467.

Almost surely, 2^6224378738 is an apocalyptic number.

6224378738 is a deficient number, since it is larger than the sum of its proper divisors (3112356733).

6224378738 is an frugal number, since it uses more digits than its factorization.

6224378738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111576 (or 55789 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 50.

The square root of 6224378738 is about 78894.7320041079. The cubic root of 6224378738 is about 1839.4952476933.

Multiplying 6224378738 by its sum of digits (50), we get a square (311218936900 = 557870²).

The spelling of 6224378738 in words is "six billion, two hundred twenty-four million, three hundred seventy-eight thousand, seven hundred thirty-eight".