54609861539 has 2 divisors, whose sum is σ = 54609861540. Its totient is φ = 54609861538.

The previous prime is 54609861533. The next prime is 54609861571. The reversal of 54609861539 is 93516890645.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54609861539 - 2¹² = 54609857443 is a prime.

It is not a weakly prime, because it can be changed into another prime (54609861533) 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 as a sum of consecutive naturals, namely, 27304930769 + 27304930770.

It is an arithmetic number, because the mean of its divisors is an integer number (27304930770).

Almost surely, 2^54609861539 is an apocalyptic number.

54609861539 is a deficient number, since it is larger than the sum of its proper divisors (1).

54609861539 is an equidigital number, since it uses as much as digits as its factorization.

54609861539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6998400, while the sum is 56.

The spelling of 54609861539 in words is "fifty-four billion, six hundred nine million, eight hundred sixty-one thousand, five hundred thirty-nine".