6543445451 has 8 divisors (see below), whose sum is σ = 6628068000. Its totient is φ = 6459069760.

The previous prime is 6543445411. The next prime is 6543445457. The reversal of 6543445451 is 1545443456.

6543445451 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6543445451 - 2⁶ = 6543445387 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6543445399 and 6543445408.

It is not an unprimeable number, because it can be changed into a prime (6543445457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8060 + ... + 114681.

It is an arithmetic number, because the mean of its divisors is an integer number (828508500).

Almost surely, 2^6543445451 is an apocalyptic number.

6543445451 is a deficient number, since it is larger than the sum of its proper divisors (84622549).

6543445451 is a wasteful number, since it uses less digits than its factorization.

6543445451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123429.

The product of its digits is 576000, while the sum is 41.

The square root of 6543445451 is about 80891.5660065992. The cubic root of 6543445451 is about 1870.4043137131.

The spelling of 6543445451 in words is "six billion, five hundred forty-three million, four hundred forty-five thousand, four hundred fifty-one".