6378439101 has 16 divisors (see below), whose sum is σ = 8530099200. Its totient is φ = 4239554480.

The previous prime is 6378439091. The next prime is 6378439127. The reversal of 6378439101 is 1019348736.

It is a cyclic number.

It is not a de Polignac number, because 6378439101 - 2⁹ = 6378438589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6378432101) 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 15 ways as a sum of consecutive naturals, for example, 3037750 + ... + 3039848.

It is an arithmetic number, because the mean of its divisors is an integer number (533131200).

Almost surely, 2^6378439101 is an apocalyptic number.

It is an amenable number.

6378439101 is a deficient number, since it is larger than the sum of its proper divisors (2151660099).

6378439101 is a wasteful number, since it uses less digits than its factorization.

6378439101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4656.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 6378439101 is about 79865.1306954418. The cubic root of 6378439101 is about 1854.5482538311.

The spelling of 6378439101 in words is "six billion, three hundred seventy-eight million, four hundred thirty-nine thousand, one hundred one".