451331042445 has 32 divisors (see below), whose sum is σ = 802442793600. Its totient is φ = 240686940672.

The previous prime is 451331042431. The next prime is 451331042447. The reversal of 451331042445 is 544240133154.

451331042445 is a `hidden beast` number, since 45 + 133 + 1 + 0 + 42 + 445 = 666.

It is not a de Polignac number, because 451331042445 - 2⁶ = 451331042381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451331042447) 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, 1312029 + ... + 1619901.

It is an arithmetic number, because the mean of its divisors is an integer number (25076337300).

Almost surely, 2^451331042445 is an apocalyptic number.

451331042445 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

451331042445 is a deficient number, since it is larger than the sum of its proper divisors (351111751155).

451331042445 is a wasteful number, since it uses less digits than its factorization.

451331042445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318746 (or 318740 counting only the distinct ones).

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

Adding to 451331042445 its reverse (544240133154), we get a palindrome (995571175599).

The spelling of 451331042445 in words is "four hundred fifty-one billion, three hundred thirty-one million, forty-two thousand, four hundred forty-five".