451242454243 has 32 divisors (see below), whose sum is σ = 569908362240. Its totient is φ = 348123156480.

The previous prime is 451242454217. The next prime is 451242454261. The reversal of 451242454243 is 342454242154.

It is a cyclic number.

It is not a de Polignac number, because 451242454243 - 2⁵ = 451242454211 is a prime.

It is a super-2 number, since 2×451242454243² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 451242454196 and 451242454205.

It is not an unprimeable number, because it can be changed into a prime (451242454643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14438488 + ... + 14469706.

It is an arithmetic number, because the mean of its divisors is an integer number (17809636320).

Almost surely, 2^451242454243 is an apocalyptic number.

451242454243 is a deficient number, since it is larger than the sum of its proper divisors (118665907997).

451242454243 is a wasteful number, since it uses less digits than its factorization.

451242454243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36547.

The product of its digits is 614400, while the sum is 40.

Adding to 451242454243 its reverse (342454242154), we get a palindrome (793696696397).

The spelling of 451242454243 in words is "four hundred fifty-one billion, two hundred forty-two million, four hundred fifty-four thousand, two hundred forty-three".