43451213453 has 8 divisors (see below), whose sum is σ = 44020282368. Its totient is φ = 42885690624.

The previous prime is 43451213447. The next prime is 43451213479. The reversal of 43451213453 is 35431215434.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43451213453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43451213483) 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 7 ways as a sum of consecutive naturals, for example, 861851 + ... + 910872.

It is an arithmetic number, because the mean of its divisors is an integer number (5502535296).

Almost surely, 2^43451213453 is an apocalyptic number.

It is an amenable number.

43451213453 is a deficient number, since it is larger than the sum of its proper divisors (569068915).

43451213453 is a wasteful number, since it uses less digits than its factorization.

43451213453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1773043.

The product of its digits is 86400, while the sum is 35.

Adding to 43451213453 its reverse (35431215434), we get a palindrome (78882428887).

The spelling of 43451213453 in words is "forty-three billion, four hundred fifty-one million, two hundred thirteen thousand, four hundred fifty-three".