6400425011 has 4 divisors (see below), whose sum is σ = 6466408872. Its totient is φ = 6334441152.

The previous prime is 6400424971. The next prime is 6400425041. The reversal of 6400425011 is 1105240046.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6400425011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6400425041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32991785 + ... + 32991978.

It is an arithmetic number, because the mean of its divisors is an integer number (1616602218).

Almost surely, 2^6400425011 is an apocalyptic number.

6400425011 is a deficient number, since it is larger than the sum of its proper divisors (65983861).

6400425011 is an equidigital number, since it uses as much as digits as its factorization.

6400425011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65983860.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 6400425011 is about 80002.6562746513. The cubic root of 6400425011 is about 1856.6766310002.

Adding to 6400425011 its reverse (1105240046), we get a palindrome (7505665057).

The spelling of 6400425011 in words is "six billion, four hundred million, four hundred twenty-five thousand, eleven".