8378443792 has 10 divisors (see below), whose sum is σ = 16233234878. Its totient is φ = 4189221888.

The previous prime is 8378443781. The next prime is 8378443793. The reversal of 8378443792 is 2973448738.

It can be written as a sum of positive squares in only one way, i.e., 7741184256 + 637259536 = 87984^2 + 25244^2 .

It is not an unprimeable number, because it can be changed into a prime (8378443793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261826353 + ... + 261826384.

Almost surely, 2^8378443792 is an apocalyptic number.

It is an amenable number.

8378443792 is a deficient number, since it is larger than the sum of its proper divisors (7854791086).

8378443792 is a wasteful number, since it uses less digits than its factorization.

8378443792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523652745 (or 523652739 counting only the distinct ones).

The product of its digits is 8128512, while the sum is 55.

The square root of 8378443792 is about 91533.8396004450. The cubic root of 8378443792 is about 2031.0523628622.

The spelling of 8378443792 in words is "eight billion, three hundred seventy-eight million, four hundred forty-three thousand, seven hundred ninety-two".