53518447177799 has 2 divisors, whose sum is σ = 53518447177800. Its totient is φ = 53518447177798.

The previous prime is 53518447177703. The next prime is 53518447177849. The reversal of 53518447177799 is 99777174481535.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53518447177799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53518447173799) 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, 26759223588899 + 26759223588900.

It is an arithmetic number, because the mean of its divisors is an integer number (26759223588900).

Almost surely, 2^{53518447177799} is an apocalyptic number.

53518447177799 is a deficient number, since it is larger than the sum of its proper divisors (1).

53518447177799 is an equidigital number, since it uses as much as digits as its factorization.

53518447177799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1867017600, while the sum is 77.

The spelling of 53518447177799 in words is "fifty-three trillion, five hundred eighteen billion, four hundred forty-seven million, one hundred seventy-seven thousand, seven hundred ninety-nine".