6400504023123 has 8 divisors (see below), whose sum is σ = 9753148987648. Its totient is φ = 3657430870344.

The previous prime is 6400504023097. The next prime is 6400504023187. The reversal of 6400504023123 is 3213204050046.

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

It is not a de Polignac number, because 6400504023123 - 2¹² = 6400504019027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6400504043123) 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, 152392952911 + ... + 152392952952.

It is an arithmetic number, because the mean of its divisors is an integer number (1219143623456).

Almost surely, 2^{6400504023123} is an apocalyptic number.

6400504023123 is a deficient number, since it is larger than the sum of its proper divisors (3352644964525).

6400504023123 is a wasteful number, since it uses less digits than its factorization.

6400504023123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304785905873.

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 6400504023123 its reverse (3213204050046), we get a palindrome (9613708073169).

The spelling of 6400504023123 in words is "six trillion, four hundred billion, five hundred four million, twenty-three thousand, one hundred twenty-three".