54819331849 has 2 divisors, whose sum is σ = 54819331850. Its totient is φ = 54819331848.

The previous prime is 54819331799. The next prime is 54819331859. The reversal of 54819331849 is 94813391845.

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., 47990788624 + 6828543225 = 219068^2 + 82635^2 .

It is a cyclic number.

It is not a de Polignac number, because 54819331849 - 2¹⁵ = 54819299081 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54819331849.

It is not a weakly prime, because it can be changed into another prime (54819331859) 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, 27409665924 + 27409665925.

It is an arithmetic number, because the mean of its divisors is an integer number (27409665925).

Almost surely, 2^54819331849 is an apocalyptic number.

It is an amenable number.

54819331849 is a deficient number, since it is larger than the sum of its proper divisors (1).

54819331849 is an equidigital number, since it uses as much as digits as its factorization.

54819331849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3732480, while the sum is 55.

The spelling of 54819331849 in words is "fifty-four billion, eight hundred nineteen million, three hundred thirty-one thousand, eight hundred forty-nine".