54343791842 has 6 divisors (see below), whose sum is σ = 81516182283. Its totient is φ = 27171731082.

The previous prime is 54343791841. The next prime is 54343791893. The reversal of 54343791842 is 24819734345.

It can be written as a sum of positive squares in only one way, i.e., 27171895921 + 27171895921 = 164839^2 + 164839^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=164839.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54343791841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 247259 + ... + 412097.

Almost surely, 2^54343791842 is an apocalyptic number.

54343791842 is a deficient number, since it is larger than the sum of its proper divisors (27172390441).

54343791842 is an frugal number, since it uses more digits than its factorization.

54343791842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329680 (or 164841 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 50.

Multiplying 54343791842 by its sum of digits (50), we get a square (2717189592100 = 1648390²).

The spelling of 54343791842 in words is "fifty-four billion, three hundred forty-three million, seven hundred ninety-one thousand, eight hundred forty-two".