6401343433 has 4 divisors (see below), whose sum is σ = 6451747840. Its totient is φ = 6350939028.

The previous prime is 6401343401. The next prime is 6401343437. The reversal of 6401343433 is 3343431046.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3343431046 = 2 ⋅1671715523.

It is a cyclic number.

It is not a de Polignac number, because 6401343433 - 2⁵ = 6401343401 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6401343395 and 6401343404.

It is not an unprimeable number, because it can be changed into a prime (6401343437) 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, 25202013 + ... + 25202266.

It is an arithmetic number, because the mean of its divisors is an integer number (1612936960).

Almost surely, 2^6401343433 is an apocalyptic number.

It is an amenable number.

6401343433 is a deficient number, since it is larger than the sum of its proper divisors (50404407).

6401343433 is a wasteful number, since it uses less digits than its factorization.

6401343433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50404406.

The product of its (nonzero) digits is 31104, while the sum is 31.

The square root of 6401343433 is about 80008.3960156683. The cubic root of 6401343433 is about 1856.7654340149.

Adding to 6401343433 its reverse (3343431046), we get a palindrome (9744774479).

The spelling of 6401343433 in words is "six billion, four hundred one million, three hundred forty-three thousand, four hundred thirty-three".