8378463771 has 32 divisors (see below), whose sum is σ = 12470192640. Its totient is φ = 5559775200.

The previous prime is 8378463707. The next prime is 8378463773. The reversal of 8378463771 is 1773648738.

It is not a de Polignac number, because 8378463771 - 2⁶ = 8378463707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8378463773) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 8126026 + ... + 8127056.

It is an arithmetic number, because the mean of its divisors is an integer number (389693520).

Almost surely, 2^8378463771 is an apocalyptic number.

8378463771 is a deficient number, since it is larger than the sum of its proper divisors (4091728869).

8378463771 is a wasteful number, since it uses less digits than its factorization.

8378463771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2144 (or 2138 counting only the distinct ones).

The product of its digits is 4741632, while the sum is 54.

The square root of 8378463771 is about 91533.9487348820. The cubic root of 8378463771 is about 2031.0539772576.

The spelling of 8378463771 in words is "eight billion, three hundred seventy-eight million, four hundred sixty-three thousand, seven hundred seventy-one".