43143643261453 has 4 divisors (see below), whose sum is σ = 49307020870240. Its totient is φ = 36980265652668.

The previous prime is 43143643261387. The next prime is 43143643261531. The reversal of 43143643261453 is 35416234634134.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43143643261453 is a prime.

It is a super-2 number, since 2×43143643261453² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 43143643261397 and 43143643261406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43143643265453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3081688804383 + ... + 3081688804396.

It is an arithmetic number, because the mean of its divisors is an integer number (12326755217560).

Almost surely, 2^{43143643261453} is an apocalyptic number.

It is an amenable number.

43143643261453 is a deficient number, since it is larger than the sum of its proper divisors (6163377608787).

43143643261453 is an equidigital number, since it uses as much as digits as its factorization.

43143643261453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6163377608786.

The product of its digits is 7464960, while the sum is 49.

Adding to 43143643261453 its reverse (35416234634134), we get a palindrome (78559877895587).

The spelling of 43143643261453 in words is "forty-three trillion, one hundred forty-three billion, six hundred forty-three million, two hundred sixty-one thousand, four hundred fifty-three".