7944568438 has 8 divisors (see below), whose sum is σ = 11948296680. Its totient is φ = 3961802880.

The previous prime is 7944568427. The next prime is 7944568517. The reversal of 7944568438 is 8348654497.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5239723 + ... + 5241238.

It is an arithmetic number, because the mean of its divisors is an integer number (1493537085).

Almost surely, 2^7944568438 is an apocalyptic number.

7944568438 is a deficient number, since it is larger than the sum of its proper divisors (4003728242).

7944568438 is a wasteful number, since it uses less digits than its factorization.

7944568438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10481342.

The product of its digits is 23224320, while the sum is 58.

The square root of 7944568438 is about 89132.3086091682. The cubic root of 7944568438 is about 1995.3699929552.

The spelling of 7944568438 in words is "seven billion, nine hundred forty-four million, five hundred sixty-eight thousand, four hundred thirty-eight".