54336431213209 has 2 divisors, whose sum is σ = 54336431213210. Its totient is φ = 54336431213208.

The previous prime is 54336431213203. The next prime is 54336431213249. The reversal of 54336431213209 is 90231213463345.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52160216173209 + 2176215040000 = 7222203^2 + 1475200^2 .

It is a cyclic number.

It is not a de Polignac number, because 54336431213209 - 2²⁷ = 54336296995481 is a prime.

It is not a weakly prime, because it can be changed into another prime (54336431213203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27168215606604 + 27168215606605.

It is an arithmetic number, because the mean of its divisors is an integer number (27168215606605).

Almost surely, 2^{54336431213209} is an apocalyptic number.

It is an amenable number.

54336431213209 is a deficient number, since it is larger than the sum of its proper divisors (1).

54336431213209 is an equidigital number, since it uses as much as digits as its factorization.

54336431213209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1399680, while the sum is 46.

The spelling of 54336431213209 in words is "fifty-four trillion, three hundred thirty-six billion, four hundred thirty-one million, two hundred thirteen thousand, two hundred nine".