5443545146621 has 2 divisors, whose sum is σ = 5443545146622. Its totient is φ = 5443545146620.

The previous prime is 5443545146569. The next prime is 5443545146653. The reversal of 5443545146621 is 1266415453445.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5253286920025 + 190258226596 = 2292005^2 + 436186^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5443545146621 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5443545146621.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5443542146621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2721772573310 + 2721772573311.

It is an arithmetic number, because the mean of its divisors is an integer number (2721772573311).

Almost surely, 2^{5443545146621} is an apocalyptic number.

It is an amenable number.

5443545146621 is a deficient number, since it is larger than the sum of its proper divisors (1).

5443545146621 is an equidigital number, since it uses as much as digits as its factorization.

5443545146621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912000, while the sum is 50.

The spelling of 5443545146621 in words is "five trillion, four hundred forty-three billion, five hundred forty-five million, one hundred forty-six thousand, six hundred twenty-one".