7853781368 has 8 divisors (see below), whose sum is σ = 14725840080. Its totient is φ = 3926890680.

The previous prime is 7853781361. The next prime is 7853781371. The reversal of 7853781368 is 8631873587.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7853781361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 490861328 + ... + 490861343.

It is an arithmetic number, because the mean of its divisors is an integer number (1840730010).

Almost surely, 2^7853781368 is an apocalyptic number.

It is an amenable number.

7853781368 is a deficient number, since it is larger than the sum of its proper divisors (6872058712).

7853781368 is a wasteful number, since it uses less digits than its factorization.

7853781368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 981722677 (or 981722673 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 56.

The square root of 7853781368 is about 88621.5626583057. The cubic root of 7853781368 is about 1987.7401151719.

The spelling of 7853781368 in words is "seven billion, eight hundred fifty-three million, seven hundred eighty-one thousand, three hundred sixty-eight".