6400425012 has 12 divisors (see below), whose sum is σ = 14934325056. Its totient is φ = 2133475000.

The previous prime is 6400424971. The next prime is 6400425041. The reversal of 6400425012 is 2105240046.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 266684364 + ... + 266684387.

It is an arithmetic number, because the mean of its divisors is an integer number (1244527088).

Almost surely, 2^6400425012 is an apocalyptic number.

It is an amenable number.

6400425012 is an abundant number, since it is smaller than the sum of its proper divisors (8533900044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6400425012 is a wasteful number, since it uses less digits than its factorization.

6400425012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533368758 (or 533368756 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 6400425012 is about 80002.6562809011. The cubic root of 6400425012 is about 1856.6766310969.

Adding to 6400425012 its reverse (2105240046), we get a palindrome (8505665058).

The spelling of 6400425012 in words is "six billion, four hundred million, four hundred twenty-five thousand, twelve".