6543454401 has 64 divisors (see below), whose sum is σ = 10713661440. Its totient is φ = 3914205120.

The previous prime is 6543454399. The next prime is 6543454427. The reversal of 6543454401 is 1044543456.

It is not a de Polignac number, because 6543454401 - 2¹ = 6543454399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6543453401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10674171 + ... + 10674783.

It is an arithmetic number, because the mean of its divisors is an integer number (167400960).

Almost surely, 2^6543454401 is an apocalyptic number.

It is an amenable number.

6543454401 is a deficient number, since it is larger than the sum of its proper divisors (4170207039).

6543454401 is a wasteful number, since it uses less digits than its factorization.

6543454401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043 (or 1037 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

The square root of 6543454401 is about 80891.6213275516. The cubic root of 6543454401 is about 1870.4051664805.

Adding to 6543454401 its reverse (1044543456), we get a palindrome (7587997857).

The spelling of 6543454401 in words is "six billion, five hundred forty-three million, four hundred fifty-four thousand, four hundred one".