6378423771 has 8 divisors (see below), whose sum is σ = 8558734864. Its totient is φ = 4225197600.

The previous prime is 6378423769. The next prime is 6378423773. The reversal of 6378423771 is 1773248736.

It is an interprime number because it is at equal distance from previous prime (6378423769) and next prime (6378423773).

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

It is not a de Polignac number, because 6378423771 - 2¹ = 6378423769 is a prime.

It is a super-3 number, since 3×6378423771³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6378423771.

It is not an unprimeable number, because it can be changed into a prime (6378423773) 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 7 ways as a sum of consecutive naturals, for example, 6770680 + ... + 6771621.

It is an arithmetic number, because the mean of its divisors is an integer number (1069841858).

Almost surely, 2^6378423771 is an apocalyptic number.

6378423771 is a deficient number, since it is larger than the sum of its proper divisors (2180311093).

6378423771 is a wasteful number, since it uses less digits than its factorization.

6378423771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13542461.

The product of its digits is 1185408, while the sum is 48.

The square root of 6378423771 is about 79865.0347210843. The cubic root of 6378423771 is about 1854.5467680837.

The spelling of 6378423771 in words is "six billion, three hundred seventy-eight million, four hundred twenty-three thousand, seven hundred seventy-one".