8143550344461 has 12 divisors (see below), whose sum is σ = 12630812779392. Its totient is φ = 4653457339608.

The previous prime is 8143550344421. The next prime is 8143550344471. The reversal of 8143550344461 is 1644430553418.

It is not a de Polignac number, because 8143550344461 - 2¹¹ = 8143550342413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8143550344461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8143550344411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27699150685 + ... + 27699150978.

It is an arithmetic number, because the mean of its divisors is an integer number (1052567731616).

Almost surely, 2^{8143550344461} is an apocalyptic number.

It is an amenable number.

8143550344461 is a deficient number, since it is larger than the sum of its proper divisors (4487262434931).

8143550344461 is a wasteful number, since it uses less digits than its factorization.

8143550344461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55398301680 (or 55398301673 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 48.

Adding to 8143550344461 its reverse (1644430553418), we get a palindrome (9787980897879).

The spelling of 8143550344461 in words is "eight trillion, one hundred forty-three billion, five hundred fifty million, three hundred forty-four thousand, four hundred sixty-one".