43451213452 has 6 divisors (see below), whose sum is σ = 76039623548. Its totient is φ = 21725606724.

The previous prime is 43451213447. The next prime is 43451213479. The reversal of 43451213452 is 25431215434.

43451213452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5431401678 + ... + 5431401685.

Almost surely, 2^43451213452 is an apocalyptic number.

It is an amenable number.

43451213452 is a deficient number, since it is larger than the sum of its proper divisors (32588410096).

43451213452 is a wasteful number, since it uses less digits than its factorization.

43451213452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10862803367 (or 10862803365 counting only the distinct ones).

The product of its digits is 57600, while the sum is 34.

Adding to 43451213452 its reverse (25431215434), we get a palindrome (68882428886).

The spelling of 43451213452 in words is "forty-three billion, four hundred fifty-one million, two hundred thirteen thousand, four hundred fifty-two".