451376542643 has 32 divisors (see below), whose sum is σ = 508584484800. Its totient is φ = 397716996096.

The previous prime is 451376542577. The next prime is 451376542667. The reversal of 451376542643 is 346245673154.

It is a cyclic number.

It is not a de Polignac number, because 451376542643 - 2¹⁴ = 451376526259 is a prime.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 451376542591 and 451376542600.

It is not an unprimeable number, because it can be changed into a prime (451376542543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37257755 + ... + 37269867.

It is an arithmetic number, because the mean of its divisors is an integer number (15893265150).

Almost surely, 2^451376542643 is an apocalyptic number.

451376542643 is a deficient number, since it is larger than the sum of its proper divisors (57207942157).

451376542643 is a wasteful number, since it uses less digits than its factorization.

451376542643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13271.

The product of its digits is 7257600, while the sum is 50.

The spelling of 451376542643 in words is "four hundred fifty-one billion, three hundred seventy-six million, five hundred forty-two thousand, six hundred forty-three".