6400804123 has 8 divisors (see below), whose sum is σ = 7407802880. Its totient is φ = 5416954920.

The previous prime is 6400804099. The next prime is 6400804127. The reversal of 6400804123 is 3214080046.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6400804123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6400804091 and 6400804100.

It is not an unprimeable number, because it can be changed into a prime (6400804127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5786793 + ... + 5787898.

It is an arithmetic number, because the mean of its divisors is an integer number (925975360).

Almost surely, 2^6400804123 is an apocalyptic number.

6400804123 is a deficient number, since it is larger than the sum of its proper divisors (1006998757).

6400804123 is a wasteful number, since it uses less digits than its factorization.

6400804123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11574777.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 6400804123 is about 80005.0256108952. The cubic root of 6400804123 is about 1856.7132886957.

Adding to 6400804123 its reverse (3214080046), we get a palindrome (9614884169).

The spelling of 6400804123 in words is "six billion, four hundred million, eight hundred four thousand, one hundred twenty-three".