6378789723 has 8 divisors (see below), whose sum is σ = 8511280128. Its totient is φ = 4249412904.

The previous prime is 6378789707. The next prime is 6378789761. The reversal of 6378789723 is 3279878736.

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

It is not a de Polignac number, because 6378789723 - 2⁴ = 6378789707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6378789223) 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, 773611 + ... + 781812.

It is an arithmetic number, because the mean of its divisors is an integer number (1063910016).

Almost surely, 2^6378789723 is an apocalyptic number.

6378789723 is a deficient number, since it is larger than the sum of its proper divisors (2132490405).

6378789723 is a wasteful number, since it uses less digits than its factorization.

6378789723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1556793.

The product of its digits is 21337344, while the sum is 60.

The square root of 6378789723 is about 79867.3257534018. The cubic root of 6378789723 is about 1854.5822346370.

The spelling of 6378789723 in words is "six billion, three hundred seventy-eight million, seven hundred eighty-nine thousand, seven hundred twenty-three".