5443675776421 has 2 divisors, whose sum is σ = 5443675776422. Its totient is φ = 5443675776420.

The previous prime is 5443675776401. The next prime is 5443675776559. The reversal of 5443675776421 is 1246775763445.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5346153230625 + 97522545796 = 2312175^2 + 312286^2 .

It is a cyclic number.

It is not a de Polignac number, because 5443675776421 - 2³¹ = 5441528292773 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5443675776421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5443675776401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2721837888210 + 2721837888211.

It is an arithmetic number, because the mean of its divisors is an integer number (2721837888211).

Almost surely, 2^{5443675776421} is an apocalyptic number.

It is an amenable number.

5443675776421 is a deficient number, since it is larger than the sum of its proper divisors (1).

5443675776421 is an equidigital number, since it uses as much as digits as its factorization.

5443675776421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 118540800, while the sum is 61.

The spelling of 5443675776421 in words is "five trillion, four hundred forty-three billion, six hundred seventy-five million, seven hundred seventy-six thousand, four hundred twenty-one".