451533045543 has 16 divisors (see below), whose sum is σ = 616116352896. Its totient is φ = 293987504160.

The previous prime is 451533045539. The next prime is 451533045563. The reversal of 451533045543 is 345540335154.

It is a happy number.

It is not a de Polignac number, because 451533045543 - 2² = 451533045539 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 451533045495 and 451533045504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451533045563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 941928 + ... + 1338018.

It is an arithmetic number, because the mean of its divisors is an integer number (38507272056).

Almost surely, 2^451533045543 is an apocalyptic number.

451533045543 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

451533045543 is a deficient number, since it is larger than the sum of its proper divisors (164583307353).

451533045543 is a wasteful number, since it uses less digits than its factorization.

451533045543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404974.

The product of its (nonzero) digits is 1080000, while the sum is 42.

The spelling of 451533045543 in words is "four hundred fifty-one billion, five hundred thirty-three million, forty-five thousand, five hundred forty-three".