54434843381 has 2 divisors, whose sum is σ = 54434843382. Its totient is φ = 54434843380.

The previous prime is 54434843363. The next prime is 54434843471. The reversal of 54434843381 is 18334843445.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45995665156 + 8439178225 = 214466^2 + 91865^2 .

It is a cyclic number.

It is not a de Polignac number, because 54434843381 - 2¹⁸ = 54434581237 is a prime.

It is a super-2 number, since 2×54434843381² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54434843681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27217421690 + 27217421691.

It is an arithmetic number, because the mean of its divisors is an integer number (27217421691).

Almost surely, 2^54434843381 is an apocalyptic number.

It is an amenable number.

54434843381 is a deficient number, since it is larger than the sum of its proper divisors (1).

54434843381 is an equidigital number, since it uses as much as digits as its factorization.

54434843381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2211840, while the sum is 47.

The spelling of 54434843381 in words is "fifty-four billion, four hundred thirty-four million, eight hundred forty-three thousand, three hundred eighty-one".