6400346453 has 4 divisors (see below), whose sum is σ = 6495874080. Its totient is φ = 6304818828.

The previous prime is 6400346443. The next prime is 6400346471. The reversal of 6400346453 is 3546430046.

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.

It is a cyclic number.

It is not a de Polignac number, because 6400346453 - 2⁶ = 6400346389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6400346443) 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, 47763713 + ... + 47763846.

It is an arithmetic number, because the mean of its divisors is an integer number (1623968520).

Almost surely, 2^6400346453 is an apocalyptic number.

It is an amenable number.

6400346453 is a deficient number, since it is larger than the sum of its proper divisors (95527627).

6400346453 is an equidigital number, since it uses as much as digits as its factorization.

6400346453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95527626.

The product of its (nonzero) digits is 103680, while the sum is 35.

The square root of 6400346453 is about 80002.1653019467. The cubic root of 6400346453 is about 1856.6690347651.

Adding to 6400346453 its reverse (3546430046), we get a palindrome (9946776499).

The spelling of 6400346453 in words is "six billion, four hundred million, three hundred forty-six thousand, four hundred fifty-three".