54636231665989 has 2 divisors, whose sum is σ = 54636231665990. Its totient is φ = 54636231665988.

The previous prime is 54636231665959. The next prime is 54636231666047. The reversal of 54636231665989 is 98956613263645.

54636231665989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40614389735364 + 14021841930625 = 6372942^2 + 3744575^2 .

It is a cyclic number.

It is not a de Polignac number, because 54636231665989 - 2¹³ = 54636231657797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54636231665959) 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, 27318115832994 + 27318115832995.

It is an arithmetic number, because the mean of its divisors is an integer number (27318115832995).

Almost surely, 2^{54636231665989} is an apocalyptic number.

It is an amenable number.

54636231665989 is a deficient number, since it is larger than the sum of its proper divisors (1).

54636231665989 is an equidigital number, since it uses as much as digits as its factorization.

54636231665989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1511654400, while the sum is 73.

It can be divided in two parts, 546362 and 31665989, that added together give a triangular number (32212351 = T₈₀₂₆).

The spelling of 54636231665989 in words is "fifty-four trillion, six hundred thirty-six billion, two hundred thirty-one million, six hundred sixty-five thousand, nine hundred eighty-nine".